Godfrey shrugged his shoulders at the apparent irrelevancy of Idris' remarks.
"Your question is not susceptible of an answer."
"True—at present. But an investigator should take note of every circumstance, however trifling, although at the time he may fail to discern its true significance."
"But seeing that the tapestry may have been carried off centuries ago, it is difficult to discover the present application of your remark."
"On the other hand it may have been carried off only recently: it is these recent traces that I wish to find. Somehow, this bent rod attracts me. Ah!"
Whilst speaking thus he suddenly recalled an incident that had occurred during his previous exploration in the dark.
"Godfrey, your divining rod. I am half-a-believer in its powers. At any rate I am going to try an experiment."
Taking the hazel stick he walked to that part of the wall where the shred of tapestry hung.
"Either I am dreaming," he said, "or a singular experience befell me at this spot."