Complications abound in a graphic novel related in brief narrative boxes plus dialogue (some of it in both Spanish and English) in hundreds of b&w comic-book frames. Sarah has been told (falsely) that her mother died; Carlos can't understand why an old blind man is so interested in a subway token he's found. The two kids team up and eventually learn the truth: the evil Mr. Underton was blinded by Sarah's mother 11 years ago when he tried to steal the token that's the source of power for the metropolis (N.Y.C.), which will freeze if the token isn't delivered to safekeeping each December 21 by Sarah's mother (and, someday, by Sarah). With neat feats of derring-do but uncharacteristically lumpy plotting and motives (Stubbs hides from his wife for 11 years, fearing she'll hate him—to keep her love, he leaves her?), this isn't quite fish or fowl. Still, robust spirits run appealingly amok until the expected triumph of good. Author (and publisher) get high marks for experimenting with a new genre, though this may not be the book to make it fashionable. A bold venture that will probably entertain the young more than their elders. (Fiction. 10+)