Clary has made her choice: to follow Jace to the ends of the earth. As long as her beloved is bound to Sebastian, he’s subject to the latter’s will. The only part of Jace unaffected is his love for Clary, or so it seems… Meanwhile, the other Shadowhunters are all out of options. Without help from the Seelie Queen, the Iron Sisters, or even demons, Simon realizes they only have one shot at saving Jace―one that risks bringing down the wrath of Heaven itself…