The dragons of Ordinary Farm - Tad Williams

Tyler and Lucinda have to spend summer with their Uncle Gideon, a farmer. They think they're in for lots of sheep, horses, and pigs. But when they arrive they discover that Ordinary Farm is, well, no ordinary farm.

The bellowing in the barn comes not from a cow but from a dragon. The thundering herd in the valley? Unicorns. Uncle Gideon's farmhouse never looks the same twice. Plus, there's a flying monkey, a demon squirrel, and farmhands with strange powers.

The place seems like an adventure. But when darker secrets surface and Uncle Gideon and his creatures are threatened, Lucinda and Tyler must act. Will they be able to save the dragons, the farm - and themselves?