The medium closed it and returned it to his pocket.

"That book, Mr. Baxter, contains a few extracts from some of the things you said during your trance. The sentence I have read is one of them, an answer given to a demand made by me that the control should give some unmistakable proof of her identity. She ... you hesitated some time before giving that answer."

"Who took the notes?"

"Mrs. Stapleton. You can see the originals if you wish. I thought it might distress you to know that such notes had been taken; but I have had to risk that. We must not lose you, Mr. Baxter."

Laurie sat, dumb and bewildered.

"Now all you have to do," continued the medium serenely, "is to find out whether what has been said is correct or not. If it is not correct, there will be an end of the matter, if you choose. But if it is correct—"

"Stop; let me think!" cried Laurie.

He was back again in the confusion from which he thought he had escaped. Here was a definite test, offered at least in good faith—just such a test as had been lacking before; and he had no doubt whatever that it would be borne out by facts. And if it were—was there any conceivable hypothesis that would explain it except the one offered so confidently by this grave, dignified man who sat and looked at him with something of interested compassion in his heavy eyes? Coincidence? It was absurd. Certainly graves did sink, sometimes—but ... Thought-transference from someone who noticed the grave...? But why that particular thought, so vivid, concise, and pointed...?

If it were true...?

He looked hopelessly at the man, who sat smoking quietly and waiting.