"What makes you suspect her?" groaned Edenborough to the ground.

"It's not a case of suspicion—don't deceive yourself as to that, Edenborough. I know that Miss Trevellyn produced—and parted with—those last two sketches about which there's been all the trouble. I only suspect that she got you to show her the originals, almost as soon as they were made, on the plea of her tremendous interest in the Navy."

"Quite true; she did," said Edenborough, but as though he did not appreciate what he was saying, as though something else had stuck in his mind. "But it was a tremendous interest!" he exclaimed, jumping up. "It was her father's interest; his life, indeed! Isn't it inconceivable that his daughter—apart from everything else I've found her—that she of all people should do a thing like this?"

"I am afraid the inconceivable happens almost as often as the unexpected," said Dollar, with a sigh. "Criminology, indeed, prepares us for little else. Think of the perfectly good mothers who have flown to infanticide as the first relief of a mind unhinged! The inversion of the ruling passions is one of the sure symptoms of insanity."

"But of course she's mad," cried Edenborough, "if she's guilty at all. But that's what I can't and won't believe. I can believe it one minute but not the next, just as I've suspected and laughed at my suspicions all this nightmare time. One look in her face has always been enough, and would be at this minute."

"Well, we shall soon see," said Dollar, glancing at the clock. "But I can only warn you that my evidence is overwhelming."

"Let's have it, then; what is your evidence?" demanded Edenborough, in a fresh fit of stone-blind defiance.

"My dear fellow, you force my hand!" said Dollar. "God knows you have a right—and it can't make matters worse than they are. My evidence consists of a full and circumstantial confession by a scoundrel to whom I took your own dislike at sight, and whose career I have spent the week investigating. I needn't tell you I mean the infamous Rocchi."

"Rocchi!" whispered Edenborough at the second attempt, as though his very tongue rejected the abhorrent name. Yet now he stood perfectly still, like a man who sees at last. "Well," he added in an ominously rational voice, "I must live long enough to send him to hell, whatever else I do."

"You will have to find him first," said Dollar. "He has gone back to his paymasters—not his own countrymen—they kicked him out long ago. I've taken it on myself to do the same, instead of handing him over to the police and doing an infinite deal more harm than good."