The Queens of Innis Lear by Tessa Gratton

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… Read more.