You’ll never hear her on the roof. At most, you’ll only just catch a glimpse of her fluffy tail as she scampers out a window, having retrieved whatever it is her employer sent her to retrieve.
Nobody locks upper story windows. Because most thieves can’t get in. But Millie is not most thieves.
Which works both for and against her. What’s she going to say, that was someone else’s tail you saw?
Considering purchasing some upgrades to the intitute’s security system…
Meep.
*sits in her tower watching the squirrel urchin skittering about on the rooftops*