Islands in the Sky — Tanith Lee

London, 1877. Twelve-year-old Hope Glover climbs a tree to rescue a kite but instead finds the kite pulling her into the sky, over the ocean, and into a storm! She is rescued by a small, beautiful ship--the Basset--and drawn into a magical world where a war rages between centaurs and winged horses. It's up to Hope to find a solution which turns out to include an out-of-practice genie, a new pair of wings, and the legendary Pandora's box itself! Middle-grade boys and girls will be swept up in this first exciting adventure in the fantastic world of the Basset!