Unstandables: UNSTANDABLE the book and UNSTANDABLE the sequel, in one volume (obviously)

Pleasance Lockwood and her teenage sister Nixie find themselves in a modern Wonderland full of offbeat characters. The bumbling and self-serving Imaginary Friend is probably more trouble than he's worth. Super Dude is a great hero, but perhaps he needs to be saved from himself. Tough Tex, Mad Scientist, and various other friends and foes (human and otherwise) assault the sisters with twisted logic and twisted wordplay as one predicament follows another.