One sister offers her life in exchange for the other’s in this dark, Irish lore–inspired romantasy and “sizzling, high-stakes debut launching a series that readers will greedily devour” (Kirkus Reviews, starred review).

On the mist-shrouded Isle of Eireann, buying magic comes with a price.

But when her beloved older sister is gravely injured, Maeve risks everything to buy the forbidden magic that might save her. In exchange, Maeve trades her life to a ruthless and dangerously alluring rebel leader. Bound to do his bidding, Maeve finds herself thrown into a deadly competition to become the next queen and stand beside a prince rumored to be more brutal than his tyrannical father.

With the isle on the brink of war, trust and survival come at a terrible cost—one that will tear Maeve’s world, and her heart, in two.

What would you sacrifice to survive?