“Neither dog nor cat nor monkey nor any creature that we are familiar with. I have tried to reconstruct it from the measurements. Here are four prints where the beast has been standing motionless. You see that it is no less than fifteen inches from forefoot to hind. Add to that the length of neck and head, and you get a creature not much less than two feet long⁠—probably more if there is any tail. But now observe this other measurement. The animal has been moving, and we have the length of its stride. In each case it is only about three inches. You have an indication, you see, of a long body with very short legs attached to it. It has not been considerate enough to leave any of its hair behind it. But its general shape must be what I have indicated, and it can run up a curtain, and it is carnivorous.”

“How do you deduce that?”

“Because it ran up the curtain. A canary’s cage was hanging in the window, and its aim seems to have been to get at the bird.”

“Then what was the beast?”