The art syle of "Hillary" and her curvy dagger vaguely remind me of a children's book I had as a kid... I can't for the life of me remember the name of the book and I haven't been able to search for it successfully. It had a bunch of wacky scenes with lots of detail, with a super family with a super dog, and they flew around fixing things and chasing flying villains in wacky settings - starliner in space, ice cream factory with weird flavors, snowy playground, etc...