But this scratching didn't sound as close. It sounded more like it was outside. Upon investigation, there was indeed a squirrel trying to dig through the wooden patch. I clapped my hands - which hurt - and flailed my arms - which probably looked silly. I had to run it off three times before it disappeared for the night.
Then came early Wednesday morning. G reported scratching above her room. I assumed the rascal had returned. Upon inspection outside, the doom became clear: not only had the squirrel from the night before returned but also there appeared to be one still in the attic trying to escape!