When I thought that, I perceived that nothing seemed likely to happen, I returned to the neighbourhood of the table. I looked at the box askance. I took it up gingerly. Something might go off at any moment for all I knew. It would be too much of a joke if Pugh’s precious puzzle exploded in my hand. I shook it doubtfully; nothing rattled. I held it to my ear; there was not a sound. What had taken place? Had the clockwork run down, and was the machine arranged with such diabolical ingenuity that a certain interval was required, after the clockwork had run down, before an explosion could occur? Or had rust caused the mechanism to again hang fire? “After making all that commotion the thing might at least come open.” I banged the box viciously against the corner of the table. I felt that I wou

