Clearly nobody has yet told Callum what Jamie did, because he says, "Grandad says he's gone to a better place, but it cannae be that good." He's frowning. "Otherwise everyone would kill themselves right now and go there."
To Beatrice - darling, dearest, dead
"As Tessa Gray prepares for her wedding, a net of shadows begins to tighten around the Shadowhunters of the London Institute. Mortmain needs one last item to complete his plan. He needs Tessa. Jem and Will, the boys who lay equal claim to Tessa's heart, will do anything to save her."
Tea Stains and Book Spines 