Melusine

A dashing and highly respected wizard, Felix Harrowgate thought he had eluded his dark past. Within the walls of the Mirador—Mélusine’s citadel of power and magic—Felix believed he was free of his abusive former master, a wizard who had enslaved him, body and soul, and trained him to pass as a nobleman. He was wrong. Raised as a kept-thief and trained as an assassin, Mildmay the Fox is used to being hunted. Having slipped his Keeper long ago, he survives as a cat burglar—until he’s caught by a mysterious magician using a powerful calling charm. And yet the magician was looking not for Mildmay—but for Felix Harrowgate... Bound by fate, the broken wizard Felix and the wanted killer Mildmay will journey far from Mélusine through lands thick with strange magics and terrible demons of darkness—but it is the secret from their pasts that will either save them or destroy them...