Calwyn has lived all her life among the priestesses of Antaris. The she meets Darrow, who tells her of the fear and hatred that hold sway in the Outlands -- where the magic arts of chantment are disappearing. They journey together to cities of golden stone and seas ruled by blood moons, gathering other chanters to them. For it will take an unprecedented unity to stand in the way of the ruthless Samis, who seeks to become Emperor of all Tremaris.