Oh bother. I'm sitting here at my computer and I hear little noises inside the wall. For the first time in 14 years, since we came to this dear old house, we have no cat. It doesn't take the mice long, does it?
And, from this very same seat, all I have to do is raise my head and look out the window and I see the top of the bank overlooking the river, where Pippin would sit, immobile for minutes at a time, watching for the slightest movement in the vegetation that revealed the movement of a mouse.
I'd better get up the man-hole tomorrow and lay some bait up in the ceiling space I suppose.