The Mouse Detective returned to see how many traps had been sprung in the corner of the basement. Three sprung traps. One dead mouse.
I told her they must be coming in through the garage as she surmised.
“More probably from the outside,” she said. “See the breeze?” and she pointed at a nearby cobweb. It was gently fluttering. She said, “That’s coming from there,” and pointed at the suspicious corner of the basement. “That’s where they’re getting in.”
I told Mouse Detective she needed her own network series.