Once the Isles of Wenaya were united in worship of Javander, goddess of the seas. From her vast, fantastical palace beneath the waves, Javander presided over a caste of priestesses, linked in a thrumming psychic web. Then the web was broken, Javander's people turned to false gods and the priestesses who once served her so well became the evil Sisterhood of the Blue Storm. Jem and his companions travel to the empty tropical island of Xaro, desperate to find Javander's blue crystal before the Anti God Toth Vexrah gets there. Meanwhile, the Triarch's beautiful young daughter, Selinda, determined to escape ritual murder, starts a journey of her own that entangles her in Jem's quest. So begins a bizarre and phantasmagorical tale, where slave galleys, ghost ships shipwrecks and sea monsters are only preludes to Jem's confrontation with the evil Sisterhood. Sisterhood of the Blue Storm is a whirling fantasia of swashbuckling adventure, tragedy and triumph, of comedy and romance, of heart-stopping action and unforgettable, larger-than-life characters, caught up in a quest on which hangs the fate of the world.