“It nearly killed him, although he had only been exposed to it in the disturbed ocean and not in the narrow calm waters of a bathing-pool. He says that he could hardly recognize himself afterwards, so white, wrinkled and shrivelled was his face. He gulped down brandy, a whole bottleful, and it seems to have saved his life. There is the book, Inspector. I leave it with you, and you cannot doubt that it contains a full explanation of the tragedy of poor McPherson.”
“And incidentally exonerates me,” remarked Ian Murdoch with a wry smile. “I do not blame you, Inspector, nor you, Mr. Holmes, for your suspicions were natural. I feel that on the very eve of my arrest I have only cleared myself by sharing the fate of my poor friend.”
“No, Mr. Murdock. I was already upon the track, and had I been out as early as I intended I might well have saved you from this terrific experience.”
“But how did you know, Mr. Holmes?”
“I am an omnivorous reader with a strangely retentive memory for trifles. That phrase ‘Lion’s Mane’ haunted my mind. I knew that I had seen it somewhere in an unexpected context. You have seen that it does describe the creature. I have no doubt that it was floating on the water when McPherson saw it, and that this phrase was the only one by which he could convey to us a warning as to the creature which had been his death.”
“Then I, at least, am cleared,” said Murdoch, rising slowly to his feet. “There are one or two words of explanation which I should give, for I know the direction in which your inquiries have run. It is true that
