A first entry in the new Dark Artifices series, a sequel to the internationally best-selling Mortal Instruments series, finds an adult Emma resolving to avenge the deaths of her parents and foil a demonic plot while her parabatai, Julian, struggles to bond with a returned brother who does not recognize him.

The body double of Castellane’s Prince Conor Aurelian, Kei knows he has one destiny: to die for Conor, but when he meets Lin, a physician searching for forbidden knowledge to heal her friend, they are drawn into the underworld of a criminal ruler who offers them each what they want most.

Still pursuing a cure for her mother's enchantment, Clary uses all her powers and ingenuity to get into Idris, the forbidden country of the secretive Shadowhunters, and to its capital, the City of Glass, where with the help of a newfound friend, Sebastian, she uncovers important truths about her family's past that will not only help save her mother but all those that she holds most dear.

Cordelia has fled to Paris after being stripped of her powers and losing everything that matters to her, but when the shocking news comes that London is under new threat by the Prince of Hell, Belial, Cordelia and her friends will have to muster their courage, swallow their pride and trust one another again if they are to save their city, their families and their souls.

Emma is torn between her passion for Julian and her need to protect him from the consequences of a forbidden romantic partnership, a situation challenged by her relationship with Mark and his efforts to regain his Shadowhunter capabilities.

A collection of ten short stories, some of which were previously available online, that follow Jem Carstairs as he travels through the many Shadow Markets around the world, searching for a relic from his past.