The House of Bloodstein: Mentralysis

The House of Bloodstein: Mentralysis is the 11th book in the League of Elder series. Lord Kabyl of Blanchefort has lost everything: his wife, his kin, his family fortune, and his home. Castle Blanchefort, once a safe haven, is overrun with enemies seeking his blood. Only a strange science known as Mentralysis, practiced in secret in the hidden places of the League, holds the key to ultimate victory. What should have been obvious to Lord Kabyl from the start at last becomes crystal clear: Foolish is he who dares possess the Ultimate Object, for misery shall be his only reward.