Le voyage du Chathrand, tome 4Robert V.S. Redick2013

The evil sorcerer Arunis is dead, yet the danger has not ended. For as he fell, beheaded by the young warrior-woman Thasha Isiq, Arunis summoned the Swarm of Night, a demonic entity that feasts on death and grows like a plague. If the Swarm is not destroyed, the world of Alifros will become a vast graveyard. Now Thasha and her comrades—the tarboy Pazel Pathkendle and the mysterious wizard Ramachni—begin a quest that seems all but impossible. Yet there is hope: One person has the power to stand against the Swarm: the great mage Erithusmé. Long thought dead, Erithusmé lives, buried deep in Thasha’s soul. But for the mage to live again, Thasha Isiq may have to die.

Titre original : Chathrand voyage, book 4: The Night of the Swarm (2013)