"Many things have happened," he replied quietly. "My uncle is dead. I am a rich man apart from the accident of his legacy. I could meet you on level terms."
"I knew nothing of this," she said quickly.
He shrugged his shoulders.
"Didn"t Jasper tell you?" he asked.
"No--Jasper told me nothing."
Frank drew a long breath.
"Then I can only say that until the mystery of my uncle"s death is solved you cannot know," he said. "I can only repeat what I have already told you."
She offered her hand.
"I believe you, Frank," she said, "and I was wrong even to doubt you in the smallest degree."
He took her hand and held it.
"May," he said, "what is this strange fascination that Jasper has over you?"
For the second time in that interview she flushed and pulled her hand back.
"There is nothing unusual in the fascination which Jasper exercises,"
she smiled, quickly recovering, almost against her will, from the little twinge of anger she felt. "It is the influence which every woman has felt and which you one day will feel."
He laughed bitterly.
"Then nothing will make you change your mind?" he said.
"Nothing in the world," she answered emphatically.
For a moment she was sorry for him, as he stood, both hands resting on a chair, his eyes on the ground, a picture of despair, and she crossed to him and slipped her arm through his.
"Don"t take it so badly, Frank," she said softly. "I am a capricious, foolish girl, I know, and I am really not worth a moment"s suffering."
He shook himself together, gathered up his hat, his stick, and his overcoat and offered his hand.
"Good-by," he said, "and good luck!"
In the meantime another interview of a widely different character was taking place in the little house which Jasper Cole occupied on the Portsmouth Road. Jasper and Saul Arthur Mann had met before, but this was the first visit that the investigator had paid to the home of John Minute"s heir.
Jasper was waiting at the door to greet the little man when he arrived, and had offered him a quiet but warm welcome and led the way to the beautiful study which was half laboratory, which he had built for himself since John Minute"s death.
"I am coming straight to the point without any beating about the bush, Mr. Cole," said the little man, depositing his bag on the side of his chair and opening it with a jerk. "I will tell you frankly that I am acting on Mr. Merrill"s behalf and that I am also acting, as I believe, in the interests of justice."
"Your motives, at any rate, are admirable," said Jasper, pushing back the papers which littered his big library table, and seating himself on the edge.
"You are probably aware that you are to some extent under suspicion, Mr.
Cole."
"Under your suspicion or the suspicion of the authorities?" asked the other coolly.
"Under mine," said Saul Arthur Mann emphatically. "I cannot speak for the authorities."
"In what direction does this suspicion run?"
He thrust his hands deep in his trousers pockets, and eyed the other keenly.
"My first suspicion is that you are well aware as to who murdered John Minute."
Jasper Cole nodded.
"I am perfectly aware that he was murdered by your friend, Mr. Merrill,"
he said.
"I suggest," said Saul Arthur Mann calmly, "that you know the murderer, and you know the murderer was _not_ Frank Merrill."
Jasper made no reply, and a faint smile flickered for a second at the corner of his mouth, but he gave no other sign of his inward feelings.
"And the other point you wish to raise?" he asked.
"The other is a more delicate subject, since it involves a lady," said the little man. "You are about to be married to Miss Nuttall."
Jasper Cole nodded.
"You have obtained an extraordinary influence over the lady in this past few months."
"I hope so," said the other cheerfully.
"It is an influence which might have been brought about by normal methods, but it is also one," Saul Arthur leaned over and tapped the table emphatically with each word, "which might be secured by a very clever chemist who had found a way of sapping the will of his victim."
"By the administration of drugs?" asked Jasper.
"By the administration of drugs," repeated Saul Arthur Mann.
Jasper Cole smiled.
"I should like to know the drug," he said. "One would make a fortune, to say nothing of benefiting humanity to an extraordinary degree by its employment. For example, I might give you a dose and you would tell me all that you know; I am told that your knowledge is fairly extensive,"
he bantered. "Surely you, Mr. Mann, with your remarkable collection of information on all subjects under the sun, do not suggest that such a drug exists?"
"On the contrary," said "The Man Who Knew" in triumph, "it is known and is employed. It was known as long ago as the days of the Borgias. It was employed in France in the days of Louis XVI. It has been, to some extent, rediscovered and used in lunatic asylums to quiet dangerous patients."
He saw the interest deepen in the other"s eyes.
"I have never heard of that," said Jasper slowly; "the only drug that is employed for that purpose is, as far as I know, bromide of pota.s.sium."
Mr. Mann produced a slip of paper, and read off a list of names, mostly of mental inst.i.tutions in the United States of America and in Germany.