This fizzy, inventive graphic trio of stories stars Robin, a princess who, in the first episode, skips out on her tutor Elias-s etiquette class and sets off for the Aquatic Carnival in nearby Noor, finding four lost brothers on the way. (-I-m Paul,- the oldest says, politely. -This is Matt, Lee, and Omar.-) The five soon reach Noor, the City of Water, where a mermaid floating in a bubble bewitches Paul and the younger boys disappear (-You sure get lost a lot,- Robin says, in the Smiths- natural-sounding translation). In all three tales, new creatures and dilemmas appear as fast as the old ones are dispatched, with opportunities for readers to help out now and then (-Use your finger to find out which path they should follow-). Evildoers are often reassuringly incompetent (one makes a gingerbread house with salt instead of sugar), and famous characters from classic children-s books make cameo appearances (-I-m Mr. Mole, and this is Mr. Badger-). Author-