The House on Falling Star Hill

The House on Falling Star Hill is a tween fantasy novel by Michael Molloy.

Pitched to 9 to 12 year olds, the novel's protagonist is Tim, a boy, who befriends a girl (Sarre) from another world. The two travel to a fantastic kingdom where an evil duke is plotting malevolence and where huge birds, used as transport, are menaced by disease spores. With the help of a group of roving merchants and minstrels, and a warrior, the boys save the kingdom.