T.X.drew on a pair of gloves and examined the bright surface for finger-prints, but a superficial view revealed no such clue.
"Open the window," said T.X., "the heat here is intolerable.

Be very careful, Mansus.

By the way, is the window fastened ?" "Very well fastened," said the superintendent after a careful scrutiny.
He pushed back the fastenings, lifted the window and as he did, a harsh bell rang in the basement.
"That is the burglar alarm, I suppose," said T.X.; "go down and stop that bell." He addressed Fisher, who stood with a troubled face at the door.

When he had disappeared T.X.gave a significant glance to one of the waiting officers and the man sauntered after the valet.
Fisher stopped the bell and came back to the hall and stood before the hall fire, a very troubled man.

Near the fire was a big, oaken writing table and on this there lay a small envelope which he did not remember having seen before, though it might have been there for some time, for he had spent a greater portion of the evening in the kitchen with the cook.
He picked up the envelope, and, with a start, recognised that it was addressed to himself.