The future of all Brin'aatii hangs in the balance as a handful of individuals struggle to stake out a place for themselves and their people in a world invaded by hordes from other lands and mysterious and powerful spirit beings.

And underneath it all... a shocking truth.

Like all women of her tribe, Tenka is a hunter and warrior for her people who cares only about feeding her village and keeping the vile Easterlings away, but as the foreigners grow bolder and her village weakens, she will have no choice but to seek outside help.

Krii left both his native people in the underground city of legend and his adopted people of the forest long ago to enjoy a solitary and carefree life, but his concern for a friend in trouble and a momentary lapse in judgement lead him on a journey through his past to find answers, belonging, and maybe even redemption.

Sharn is the only ambassador between his own people and the never-ending multitudes of Easterners, but he is losing hope for a peaceful future between the two and fears all-out war, which his people seem to want but which he fears they will not survive.

Into this tense standoff enters the Sky Spirit, Twe'gotch, who changes everything and promises lasting power to whomever he favors—but is he really who and what he claims to be, and can anyone bring true peace to a land bathed in conflict and turmoil?