Black Blades: The Rifter Book Three

Once Kahlil had been entrusted with a holy duty: to watchover the Rifter and protect him in the world of Nayeshi until theIssusha'im Oracles decided whether to summon the destroyergod or kill him while he remained a mortal in Nayeshi. ButKahlil failed his duty, slipping away to rescue his sister froma fire and in that moment allowing the Rifter to cross into theworld of Basawar. Desperate, Kahlil followed the Rifter.
But the Great Gate hadbeen shattered, and Kahlil suffered catastrophic injuries to bothhis body and his mind during the crossing between worlds. He has returned to Basawar, but his home is not as he rememberedit-inasmuchas he can remember anything. With all signsof the holy sect he once served now wiped away, there is no one toremind him of his purpose. In his wrecked condition he accepts theonly help offered and takes work in the noble Bousim household asa spy and an assassin for handsome Captain Alidas'ro'Bousim whopatrols the seething underbelly of the capital city of Nurjima.
Now, after two years of faithful service, Alidas sends him ona final mission: to infiltrate the Lisam household and stop OurathLisam and his circle of noble conspirators from assassinating theFai'daum leader, Jath'ibaye.