I tried to chase it by lifting the stovetop so that I could peer down into the gridwork of the burners, where the pilot lights are, but as soon as I did so I saw it dart from one corner to another, and then disappear down behind the stove, where there’s a gap between the oven and the wall. After that I no longer saw it, though I looked and listened carefully for a few minutes. He’d been brownish in color, and very small, and I felt no hostility toward him.