"Shadowhunters are Nephilim." Magnus and Bob were probably the only patrons that knew what Alec really was. Most of the time he pretended that the marks were tattoos and he was one of those slayers like in Mundane stories. But Sebastian should know the truth, especially when he knew about warlocks.

"We're not like that." Fallen one made Alec thinks of certain demons. He couldn't bring himself to mention it, afraid that whatever weirdness was inhabiting the Library might pick up on his thoughts. They didn't need those kind of demons showing up here. "We're part angel because of a gift that was given to my people so that we could protect the world from demons."