I awoke sometime in the wee hours of the morning to the sound of some animal. It landed with a thump and ran across the linoleum in the kitchen. There was no sound of nails like when Sammy is in the kitchen. Just to be certain I peered into the darkness where he usually sleeps. To date, he's not been entirely happy with the baby gate but he's respected the boundary and not jumped over it. Unfortunately, I eventually saw him and heard him. The animal was not heard from again.
I can only guess that something was brought into the house when my husband brought the porch cushions inside on Saturday. There's no way I'm going down there by myself this early in the morning to see. No evidence of feces or gnawed through packages in the kitchen. What could be heavy enough to make a thud when it landed, have short nails, and yet be small enough to squeeze through a 1.5 inch space under the basement door?