The erratic decisions of a prophecy-obsessed king have drained Innis Lear of its wild magic, leaving behind a trail of barren crops and despondent subjects. Enemy nations circle the once-bountiful isle, sensing its growing vulnerability, hungry to control the ideal port for all trade routes.

The king's three daughters - battle-hungry Gaela, master manipulator Reagan, and restrained, starblessed Elia - know the realm's only chance of resurrection is to crown a new sovereign, proving a strong hand can resurrect magic and defend itself. But their father will not choose an heir until the longest night of the year, when prophecies align and a poison ritual can be enacted.

Refusing to leave their future in the hands of blind faith, the daughters of Innis Lear prepare for war - but regardless of who wins the crown, the shores of Innis will weep the blood of a house divided.