Princess Hyacinth (the Surprising Tale of a Girl Who Floated) Children's Picture Book by Florence Parry Heide. Bestselling Caldecott Honor artist Lane Smith and legendary author Florence Parry Heide have teamed up to create an unforgettable princess sure to charm and delight young readers. Princess Hyacinth has a problem: she floats. And so the king and queen have pebbles sewn into the tops of her socks, and force her to wear a crown encrusted with the heaviest jewels in the kingdom to keep her earthbound. But one day, Hyacinth comes across a balloon man and decides to take off all her princess clothes, grab a balloon, and float free. Hooray! Alas, when the balloon man lets go of the string . . . off she goes. Luckily, there is a kite and a boy named Boy to save her. Hardcover. Published by Schwartz & Wade. 4-8 years.