He did not speak again for some moments, being busily occupied in lighting his long cigar. Presently he leaned back, then blew a great cloud of smoke towards the ceiling.
Suddenly we heard a click, like the wooden lid of a box suddenly shut.
"Hullo!" he exclaimed suddenly, "what's that?"
"What's what?"
"Why! Look!" he gasped.
His gaze was set upon something in the shadow of a small table in a corner of the roomsomething on the floor. In silence, now, we both stood staring at it, for Osborne had risen suddenly. Slowly it moved. It was gradually gliding along the floor, with a sound like paper being pushed along a carpet. Whence it came, where it began and where it ended, we could not see, for the shadow it was in was very deep. Nor was its colour in the least discernible.
All we could make out was that some long, sinuous, apparently endless Thing was passing along the room, close to the wall farthest from us, coming from under the sofa and disappearing beneath the table.
All at once Osborne sprang towards me with an exclamation of alarm, and I felt his grip tighten upon my arm.
"Good God!" he cried.
An instant later a broad, flat head slowly reared itself from beneath the red table-cover which hung down almost to the floor, rose higher and higher until the black, beady, merciless eyes were set upon mine, and in that brief instant of supreme suspense my attention became riveted on the strange, slate-grey mark between and just behind the reptile's cruel eyes. Then, as its head suddenly shot back, Osborne dashed towards the door.