 In "Cold Days", Harry and Molly stop by the Carpenter house to pick him up before moving against the Outsiders' assault on Demonreach Island.In "Skin Game", Mouse is still Maggie's protector, and is in fact allowed to go with her to school as a service dog.This disturbs Harry somewhat when he realizes that, with Mouse's intelligence, he will attain a formal educational level higher than Harry ever did, although he can easily picture Mouse getting along well with everyone at the school and enjoying attention while acting like a "normal" friendly dog, especially after Michael tells him that several kids are allowed to play with Mouse during recess as a reward.