Moon has spent his life hiding what he is — a shape-shifter able to transform himself into a winged creature of flight. An orphan with only vague memories of his own kind, Moon tries to fit in among the tribes of his river valley, with mixed success. Just as Moon is once again cast out by his adopted tribe, he discovers a shape-shifter like himself... someone who seems to know exactly what he is, who promises that Moon will be welcomed into his community. What this stranger doesn't tell Moon is that his presence will tip the balance of power... that his extraordinary lineage is crucial to the colony's survival... and that his people face extinction at the hands of the dreaded Fell! Now Moon must overcome a lifetime of conditioning in order to save and himself... and his newfound kin.
Moon's world is populated by many different intelligent species (none of them human), and he has never known which one he belongs to. Orphaned at a young age, he's wandered from tribe to tribe, hiding a dangerous secret. Like the universally hated Fell, whose only aims are slaughter and conquest, Moon can fly which leads to predictably violent cases of mistaken identity. When he does find his own people, the Raksura, life doesn't get any easier, since their internal politics are vicious, and they too are in imminent danger from the Fell. Cue hairsbreadth escapes and feats of derring-do, as Moon helps his new family evacuate their doomed colony and then rescues a group of kidnapped children. Wells (The Gate of Gods) merrily ignores genre conventions as she spins an exciting adventure around an alien hero who anyone can identify with.