pencil, villainously cut to an abominably bad point. It is coloured dark red on the outside and was stamped with some name that began with C—O—Co-operative Stores, perhaps."
"Now, my dear Jervis," Thorndyke protested, "don't begin by confusing speculation with fact. The letters which remain are C—O. Note that fact and find out what pencils there are which have inscriptions beginning with those letters. I am not going to help you, because you can easily do this for yourself. And it will be good discipline even if the fact turns out to mean nothing."
At this moment he stepped back suddenly, and, looking down at the floor, said:
"Give me the lamp, Jervis, I've trodden on something that felt like glass."
I brought the lamp to the place where he had been standing, close by the bed, and we both knelt on the floor, throwing the light of the lamp on the bare and dusty boards. Under the bed, just within reach of the foot of a person standing close by, was a little patch of fragments of glass. Thorndyke produced a piece of paper from his pocket and delicately swept the little fragments on to it, remarking:
"By the look of things, I am not the first person who has trodden on that object, whatever it is. Do you mind holding the lamp while I inspect the remains?"
I took the lamp and held it over the paper while he examined the little heap of glass through his lens.
