Ten years after surviving the tornado that killed his parents, Vane Weston, now seventeen, has no memory of that fateful day but dreams of a beautiful girl who, he now learns, is not only real, she is his guardian sylph, who harnesses the power of the wind.

"All 12-year-old Marinka wants is a friend. A real friend. Not like her house with chicken legs. Sure, the house can play games like tag and hide-and-seek, but Marinka longs for a human companion. Someone she can talk to and share secrets with. But that's tough when your grandmother is a Yaga, a guardian who guides the dead into the afterlife. It's even harder when you live in a house that wanders all over the world . . . carrying you with it. Even...