Faerie Magic

Faeries are being killed and the Clave are doing little to stop it. The Seelie queen wants a marriage between a shadowhunter and her grandson, Hadrian, as a sign of good-will. Alec offers himself. But with a plotting queen and a faerie whose loyalties are unknown in their midst, the rest of the group need to end a war before it truly begins. SLASH, mentions of MPREG, AU.