The Eldest Curses Series by Cassandra Clare

Magnus Bane, a centuries old High Warlock, has taken possession of one of the great relics of the supernatural world, a powerful spell book of dark magic known as The Book of the White and there are many who want to claim it for themselves... moreMagnus Bane, a centuries old High Warlock, has taken possession of one of the great relics of the supernatural world, a powerful spell book of dark magic known as The Book of the White and there are many who want to claim it for themselves. After the Mortal War where the part-human and part-angel Shadowhunters teamed with the part human-demon Downworlders to fight against the incursion of an army of demons, Magnus and his new lover, the mortal Alec Lightwood celebrate their survival and victory by escaping the supernatural battlefield of New York City by touring the world, but the world won’t leave them alone. less

From #1 New York Times bestselling authors Cassandra Clare and Wesley Chu comes the second book in the Eldest Curses series and a thrilling new adventure for High Warlock Magnus Bane and Alec Lightwood, for whom a death-defying mission into the heart of evil is not just a job, it’s also a romantic getaway. The Lost Book of the White is a Shadowhunters novel. Life is good for Magnus Bane and Alec Lightwood... moreFrom #1 New York Times bestselling authors Cassandra Clare and Wesley Chu comes the second book in the Eldest Curses series and a thrilling new adventure for High Warlock Magnus Bane and Alec Lightwood, for whom a death-defying mission into the heart of evil is not just a job, it’s also a romantic getaway. The Lost Book of the White is a Shadowhunters novel. Life is good for Magnus Bane and Alec Lightwood. They’re living together in a fabulous loft, their warlock son, Max, has started learning to walk, and the streets of New York are peaceful and quiet—as peaceful and quiet as they ever are, anyway. Until the night that two old acquaintances break into Magnus’s apartment and steal the powerful Book of the White. Now Magnus and Alec will have to drop everything to get it back. They need to follow the thieves to Shanghai, they need to call some backup to accompany them, and they need a babysitter. Also, someone has stabbed Magnus with a strange magical weapon and the wound is glowing, so they have that to worry about too. Fortunately, their backup consists of Clary, Jace, Isabelle, and newly minted Shadowhunter Simon. In Shanghai, they learn that a much darker threat awaits them. Magnus’s magic is growing unstable, and if they can’t stop the demons flooding into the city, they might have to follow them all the way back to the source—to the very realm of the dead. Can they stop the threat to the world? Will they make it back home before their kid completely wears out Alec’s mom? less