A young giant has identity issues--no surprise, being as she's only 5 1/2 feet tall. Disingenuously apologizing to young readers for trying so hard to make them cry (and promising more of the same in future episodes), Riley pits a short-but-mighty giant and an aggrieved preteen genie against an annoyingly clever king who has gone decisively to the dark side. Her fervent hopes of being accepted as a giant met with harsh rejection, Lena flees down from the clouds to seek comfort from the mysterious Last Knight and have her real nature revealed by a drink from ex-witch Mrs. Hubbard's Cauldron of Truth. First, though, she runs into Jin, a thoroughly chapped genie banished into a ring until he demonstrates humility, who's currently under the thumb (literally) of fiendish King Midas. Most of the action takes place around the Cursed City, a hidden settlement populated by well-known figures, from Pinocchio to Humpty Dumpty, that both Midas and the giants have sworn to destroy. After many setbacks and twisty takes on fairy-tale tropes, the end leaves most of the city intact; Jin and Lena, who are plainly made for each other (though neither is anywhere near admitting it yet), freer to act than they were; and larger scale villainy and betrayal afoot. The cast members, or those not made of wood or gingerbread anyway, present White. A brisk launch well endowed with surprising exploits and ominous portents. (Fantasy. 9-12) Copyright (c) Kirkus Reviews, used with permission.