In every generation on the island of Fennbirn, a set of triplets is born--three queens, all equal heirs to the crown and each possessor of a coveted magic. Mirabella is a fierce elemental, able to control storms or flames with the snap of her fingers. Katharine is a poisoner, able to ingest the deadliest poisons without harm. And Arsinoe, a naturalist, can control nature. But becoming the Queen Crowned isn't solely a matter of royal birth. Each sister...

While Arsinoe searches for a cure to Jules's legion curse, Mirabella abandons the rebel army for Katharine, but the dead queens urge caution in trusting her, and as allegiances switch, the fate of Fennbirn Island will be determined.

In this must-read prequel to Kendare Blake's New York Times bestselling Three Dark Crowns, the queens' origin story is revealed. It's a pre-crown lowdown of Fennbirn's ruling class. Mirabella, Arsinoe, and Katharine weren't always scheming to murder each other. They weren't always surrounded by rival foster families, each swearing to have their best interests at heart. And they weren't always afraid of being unexpectedly attacked-by one of their...