Call of Wizardry — Melissa McShane

THE FINAL CHALLENGEWith their quest nearly over and the coming of age ritual complete, Sienne and her companions prepare to challenge the wizard who enslaved Alaric's people. But a message from an unexpected source reveals terrible news about the identity of the wizard's latest hostage…Alaric's beloved younger sister.In a desperate attempt to save her life and destroy the wizard, the companions travel to a secret valley in the far north, challenging the combined might of the enslaved unicorns and the most powerful wizard in the world. All their adventures have led them to this moment -- but nothing has prepared them for what comes next.The epic conclusion to the Company of Strangers series, full of terrible danger and heroic sacrifice.