"I have made experiments with narcotic herbs and plants," said Jasper, after a moment's hesitation. "I think you should know that the career which was planned for me was that of a doctor, and I have always been very interested in the effects of narcotics."

"You know of a drug called cannabis indica?" asked the counsel, consulting his paper.

"Yes; it is 'Indian hemp.'"

"Is there an infusion of cannabis indica to be obtained?"

"I do not think there is," said the other. "I can probably enlighten you because I see now the trend of your examination. I once told Frank Merrill, many years ago, when I was very enthusiastic, that an infusion of cannabis indica, combined with tincture of opium and hyocine, produced certain effects."

"It is inclined to sap the will power of a man or a woman who is constantly absorbing this poison in small doses?" suggested the counsel.

"That is so."

The counsel now switched off on a new tack.

"Do you know the East of London?"

"Yes, slightly."

"Do you know Silvers Rents?"

"Yes."

"Do you ever go to Silvers Rents?"

"Yes; I go there very regularly."

The readiness of the reply astonished both Frank and the girl. She had been feeling more and more uncomfortable as the cross-examination continued, and had a feeling that she had in some way betrayed Jasper Cole's confidence. She had listened to the cross-examination which revealed Jasper as a scientist with something approaching amazement. She had known of the laboratory, but had associated the place with those entertaining experiments that an idle dabbler in chemistry might undertake.

For a moment she doubted, and searched her mind for some occasion when he had practiced his medical knowledge. Dimly she realized that there had been some such occasion, and then she remembered that it had always been Jasper Cole who had concocted the strange drafts which had so relieved the headache to which, when she was a little younger, she had been something of a martyr. Could he—She struggled hard to dismiss the thought as being unworthy of her; and now, when the object of his visits to Silvers Rents was under examination, she found her curiosity growing.

"Why did you go to Silvers Rents?"

There was no answer.

"I will repeat my question: With what object did you go to Silvers Rents?"

"I decline to answer that question," said the man in the box coolly. "I merely tell you that I went there frequently."

"And you refuse to say why?"

"I refuse to say why," repeated the witness.

The judge on the bench made a little note.

"I put it to you," said counsel, speaking impressively, "that it was in Silvers Rents that you took on another identity."

"That is probably true," said the other, and the girl gasped; he was so cool, so self-possessed, so sure of himself.

"I suggest to you," the counsel went on, "that in those Rents Jasper Cole became Rex Holland."

There was a buzz of excitement, a sudden soft clamor of voices through which the usher's harsh demand for silence cut like a knife.

"Your suggestion is an absurd one," said Jasper, without heat, "and I presume that you are going to produce evidence to support so infamous a statement."

"What evidence I produce," said counsel, with asperity, "is a matter for me to decide."

"It is also a matter for the witness," interposed the soft voice of the judge. "As you have suggested that Holland was a party to the murder, and as you are inferring that Rex Holland is Jasper Cole, it is presumed that you will call evidence to support so serious a charge."

"I am not prepared to call evidence, my lord, and if your lordship thinks the question should not have been put I am willing to withdraw it."

The judge nodded and turned his head to the jury.

"You will consider that question as not having been put, gentlemen," he said. "Doubtless counsel is trying to establish the fact that one person might just as easily have been Rex Holland as another. There is no suggestion that Mr. Cole went to Silvers Rents—which I understand is in a very poor neighborhood—with any illegal intent, or that he was committing any crime or behaving in any way improperly by paying such frequent visits. There may be something in the witness's life associated with that poor house which has no bearing on the case and which he does not desire should be ventilated in this court. It happens to many of us," the judge went on, "that we have associations which it would embarrass us to reveal."

This little incident closed that portion of the cross-examination, and counsel went on to the night of the murder.

"When did you come to the house?" he asked.

"I came to the house soon after dark."

"Had you been in London?"

"Yes; I walked from Bexhill."

"It was dark when you arrived?"

"Yes, nearly dark."

"The servants had all gone out?"

"Yes."

"Was Mr. Minute pleased to see you?"

"Yes; he had expected me earlier in the day."

"Did he tell you that his nephew was coming to see him?"

"I knew that."

"You say he suggested that you should make yourself scarce?"

"Yes."

"And as you had a headache, you went upstairs and lay down on your bed?"

"Yes."

"What were you doing in Bexhill?"

"I came down from town and got into the wrong portion of the train."

A junior leaned over and whispered quickly to his leader.

"I see, I see," said the counsel petulantly. "Your ticket was found at Bexhill. Have you ever seen Mr. Rex Holland?" he asked.

"Never."

"You have never met any person of that name?"

"Never."

In this tame way the cross-examination closed, as cross-examinations have a habit of doing.

By the time the final addresses of counsel had ended, and the judge had finished a masterly summing-up, there was no doubt whatever in the mind of any person in the court as to what the verdict would be. The jury was absent from the box for twenty minutes and returned a verdict of "Not guilty!"

The judge discharged Frank Merrill without comment, and he left the court a free but ruined man.

CHAPTER XIII
THE MAN WHO CAME TO MONTREUX

It was two months after the great trial, on a warm day in October, when Frank Merrill stepped ashore from the big white paddle boat which had carried him across Lake Leman from Lausanne, and, handing his bag to a porter, made his way to the hotel omnibus. He looked at his watch. It pointed to a quarter to four, and May was not due to arrive until half past. He went to his hotel, washed and changed and came down to the vestibule to inquire if the instructions he had telegraphed had been carried out.

May was arriving in company with Saul Arthur Mann, who was taking one of his rare holidays abroad. Frank had only seen the girl once since the day of the trial. He had come to breakfast on the following morning, and very little had been said. He was due to leave that afternoon for the Continent. He had a little money, sufficient for his needs, and Jasper Cole had offered no suggestion that he would dispute the will, in so far as it affected Frank. So he had gone abroad and had idled away two months in France, Spain, and Italy, and had then made his leisurely way back to Switzerland by way of Maggiore.

He had grown a little graver, was a little more set in his movements, but he bore upon his face no mark to indicate the mental agony through which he must have passed in that long-drawn-out and wearisome trial. So thought the girl as she came through the swing doors of the hotel, passed the obsequious hotel servants, and greeted him in the big palm court.

If she saw any change in him he remarked a development in her which was a little short of wonderful. She was at that age when the woman is breaking through the beautiful chrysalis of girlhood. In those two months a remarkable change had come over her, a change which he could not for the moment define, for this phenomenon of development had been denied to his experience.

"Why, May," he said, "you are quite old."

She laughed, and again he noticed the change. The laugh was richer, sweeter, purer than the bubbling treble he had known.

"You are not getting complimentary, are you?" she asked.

She was exquisitely dressed, and had that poise which few Englishwomen achieve. She had the art of wearing clothes, and from the flimsy crest of her toque to the tips of her little feet she was all that the most exacting critic could desire. There are well-dressed women who are no more than mannequins. There are fine ladies who cannot be mistaken for anything but fine ladies, whose dresses are a horror and an abomination and whose expressed tastes are execrable.

May Nuttall was a fine lady, finely appareled.

"When you have finished admiring me, Frank," she said, "tell us what you have been doing. But first of all let us have some tea. You know Mr. Mann?"

The little investigator beaming in the background took Frank's hand and shook it heartily. He was dressed in what he thought was an appropriate costume for a mountainous country. His boots were stout, the woolen stockings which covered his very thin legs were very woolen, and his knickerbocker suit was warranted to stand wear and tear. He had abandoned his top hat for a large golf cap, which was perched rakishly over one eye. Frank looked round apprehensively for Saul Arthur's alpenstock, and was relieved when he failed to discover one.

The girl threw off her fur wrap and unbuttoned her gloves as the waiter placed the big silver tray on the table before her.

"I'm afraid I have not much to tell," said Frank in answer to her question. "I've just been loafing around. What is your news?"

"What is my news?" she asked. "I don't think I have any, except that everything is going very smoothly in England, and, oh, Frank, I am so immensely rich!"

He smiled.

"The appropriate thing would be to say that I am immensely poor," he said, "but as a matter of fact I am not. I went down to Aix and won quite a lot of money."

"Won it?" she said.

He nodded with an amused little smile.

"You wouldn't have thought I was a gambler, would you?" he asked solemnly. "I don't think I am, as a matter of fact, but somehow I wanted to occupy my mind."

"I understand," she said quickly.

Another little pause while she poured out the tea, which afforded Saul Arthur Mann an opportunity of firing off fifty facts about Geneva in as many sentences.

"What has happened to Jasper?" asked Frank after a while.

The girl flushed a little.

"Oh, Jasper," she said awkwardly, "I see him, you know. He has become more mysterious than ever, quite like one of those wicked people one reads about in sensational stories. He has a laboratory somewhere in the country, and he does quite a lot of motoring. I've seen him several times at Brighton, for instance."

Frank nodded slowly.

"I should think that he was a good driver," he said.

Saul Arthur Mann looked up and met his eye with a smile which was lost upon the girl.

"He has been kind to me," she said hesitatingly.

"Does he ever speak about—"

She shook her head.

"I don't want to think about that," she said; "please don't let us talk about it."

He knew she was referring to John Minute's death, and changed the conversation.

A few minutes later he had an opportunity of speaking with Mr. Mann.

"What is the news?" he asked.

Saul Arthur Mann looked round.

"I think we are getting near the truth," he said, dropping his voice. "One of my men has had him under observation ever since the day of the trial. There is no doubt that he is really a brilliant chemist."

"Have you a theory?"

"I have several," said Mr. Mann. "I am perfectly satisfied that the unfortunate fellow we saw together on the occasion of our first meeting was Rex Holland's servant. I was as certain that he was poisoned by a very powerful poisoning. When your trial was on the body was exhumed and examined, and the presence of that drug was discovered. It was the same as that employed in the case of the chauffeur. Obviously, Rex Holland is a clever chemist. I wanted to see you about that. He said at the trial that he had discussed such matters with you."

Frank nodded.

"We used to have quite long talks about drugs," he said. "I have recalled many of those conversations since the day of the trial. He even fired me with his enthusiasm, and I used to assist him in his little experiments, and obtained quite a working knowledge of these particular elements. Unfortunately I cannot remember very much, for my enthusiasm soon died, and beyond the fact that he employed hyocine and Indian hemp I have only the dimmest recollection of any of the constituents he employed."

Saul Arthur nodded energetically.

"I shall have more to tell you later, perhaps," he said, "but at present my inquiries are shaping quite nicely. He is going to be a difficult man to catch, because, if all I believe is true, he is one of the most cold-blooded and calculating men it has ever been my lot to meet—and I have met a few," he added grimly.

When he said men Frank knew that he had meant criminals.

"We are probably doing him a horrible injustice," he smiled. "Poor old Jasper!"

"You are not cut out for police work," snapped Saul Arthur Mann; "you've too many sympathies."

"I don't exactly sympathize," rejoined Frank, "but I just pity him in a way."

Again Mr. Mann looked round cautiously and again lowered his voice, which had risen.

"There is one thing I want to talk to you about. It is rather a delicate matter, Mr. Merrill," he said.

"Fire ahead!"

"It is about Miss Nuttall. She has seen a lot of our friend Jasper, and after every interview she seems to grow more and more reliant upon his help. Once or twice she has been embarrassed when I have spoken about Jasper Cole and has changed the subject."

Frank pursed his lips thoughtfully, and a hard little look came into his eyes, which did not promise well for Jasper.

"So that is it," he said, and shrugged his shoulders. "If she cares for him, it is not my business."

"But it is your business," said the other sharply. "She was fond enough of you to offer to marry you."

Further talk was cut short by the arrival of the girl. Their meeting at Geneva had been to some extent a chance one. She was going through to Chamonix to spend the winter, and Saul Arthur Mann seized the opportunity of taking a short and pleasant holiday. Hearing that Frank was in Switzerland, she had telegraphed him to meet her.

"Are you staying any time in Switzerland?" she asked him as they strolled along the beautiful quay.

"I am going back to London to-night," he replied.

"To-night," she said in surprise.

He nodded.

"But I am staying here for two or three days," she protested.

"I intended also staying for two or three days," he smiled, "but my business will not wait."

Nevertheless, she persuaded him to stay till the morrow.

They were at breakfast when the morning mail was delivered, and Frank noted that she went rapidly through the dozen letters which came to her, and she chose one for first reading. He could not help but see that that bore an English stamp, and his long acquaintance with the curious calligraphy of Jasper Cole left him in no doubt as to who was the correspondent. He saw with what eagerness she read the letter, the little look of disappointment when she turned to an inside sheet and found that it had not been filled, and his mind was made up. He had a post also, which he examined with some evidence of impatience.

"Your mail is not so nice as mine," said the girl with a smile.

"It is not nice at all," he grumbled; "the one thing I wanted, and, to be very truthful, May, the one inducement—"

"To stay over the night," she added, "was—what?"

"I have been trying to buy a house on the lake," he said, "and the infernal agent at Lausanne promised to write telling me whether my terms had been agreed to by his client."

He looked down at the table and frowned. Saul Arthur Mann had a great and extensive knowledge of human nature. He had remarked the disappointment on Frank's face, having identified also the correspondent whose letter claimed priority of attention. He knew that Frank's anger with the house agent was very likely the expression of his anger in quite another direction.

"Can I send the letter on?" suggested the girl.

"That won't help me," said Frank, with a little grimace. "I wanted to settle the business this week."

"I have it," she said. "I will open the letter and telegraph to you in Paris whether the terms are accepted or not."

Frank laughed.

"It hardly seems worth that," he said, "but I should take it as awfully kind of you if you would, May."

Saul Arthur Mann believed in his mind that Frank did not care tuppence whether the agent accepted the terms or not, but that he had taken this as a Heaven-sent opportunity for veiling his annoyance.

"You have had quite a large mail, Miss Nuttall," he said.

"I've only opened one, though. It is from Jasper," she said hurriedly.

Again both men noticed the faint flush, the strange, unusual light which came to her eyes.

"And where does Jasper write from?" asked Frank, steadying his voice.

"He writes from England, but he was going on the Continent to Holland the day he wrote," she said. "It is funny to think that he is here."

"In Switzerland?" asked Frank in surprise.

"Don't be silly," she laughed. "No, I mean on the mainland—I mean there is no sea between us."

She went crimson.

"It sounds thrilling," said Frank dryly.

She flashed round at him.

"You mustn't be horrid about Jasper," she said quickly; "he never speaks about you unkindly."

"I don't see why he should," said Frank; "but let's get off a subject which is—"

"Which is—what?" she challenged

"Which is controversial," said Frank diplomatically.

She came down to the station to see him off. As he looked out of the window, waving his farewells, he thought he had never seen a more lovely being or one more desirable.

It was in the afternoon of that day which saw Frank Merrill speeding toward the Swiss frontier and Paris that Mr. Rex Holland strode into the Palace Hotel at Montreux and seated himself at a table in the restaurant. The hour was late and the room was almost deserted. Giovanni, the head waiter, recognized him and came hurriedly across the room.

"Ah, m'sieur," he said, "you are back from England. I didn't expect you till the winter sports had started. Is Paris very dull?"

"I didn't come through Paris," said the other shortly; "there are many roads leading to Switzerland."

"But few pleasant roads, m'sieur. I have come to Montreux by all manner of ways—from Paris, through Pontarlier, through Ostend, Brussels, through the Hook of Holland and Amsterdam, but Paris is the only way for the man who is flying to this beautiful land."

The man at the table said nothing, scanning the menu carefully. He looked tired as one who had taken a very long journey.

"It may interest you to know," he said, after he had given his order and as Giovanni was turning away, "that I came by the longest route. Tell me, Giovanni, have you a man called Merrill staying at the hotel?"

"No, m'sieur," said the other. "Is he a friend of yours?"

Mr. Rex Holland smiled.

"In a sense he is a friend, in a sense he is not," he said flippantly, and offered no further enlightenment, although Giovanni waited with a deferential cock of his head.

Later, when he had finished his modest dinner, he strolled into the one long street of the town, returning to the writing room of the hotel with a number of papers which included the visitors' list, a publication printed in English, and which, as it related the comings and goings of visitors, not only to Lausanne, Montreux, and Teritet, but also to Evian and Geneva, enjoyed a fair circulation. He sat at the table, and, drawing a sheet of paper from the rack, wrote, addressed an envelope to Frank Merrill, esquire, Hotel de France, Geneva, slipped it into the hotel pillar box, and went to bed.

"There's a letter here for Frank," said the girl. "I wonder if it is from his agent."

She examined the envelope, which bore the Montreux postmark.

"I should imagine it is," said Saul Arthur Mann.

"Well, I am going to open it, anyway," said the girl. "Poor Frank! He will be in a state of suspense."

She tore open the envelope, and took out a letter. Mr. Mann saw her face go white, and the letter trembled in her hand. Without a word she passed it to him, and he read:

"Dear Frank Merrill," said the letter. "Give me another month's grace and then you may tell the whole story. Yours, Rex Holland."

Saul Arthur Mann stared at the letter with open mouth.

"What does it mean?" asked the girl in a whisper.

"It means that Merrill is shielding somebody," said the other. "It means—"

Suddenly his face lit up with excitement.

"The writing!" he gasped.

Her eyes followed his, and for a moment she did not understand; then, with a lightning sweep of her arm, she snatched the letter from his hand and crumpled it in a ball.

"The writing!" said Mr. Mann again. "I've seen it before. It is—Jasper Cole's!"

She looked at him steadily, though her face was white, and the hand which grasped the crumpled paper was shaking.

"I think you are mistaken, Mr. Mann," she said quietly.