The Mortal Instruments/Harry Potter crossover When Tessa gets invited to a Wizard-Clave alliance event, Clary and her friends are desperate to join her! When in London strange things start to happen everywhere. With the unusual Witching Cup, and a new villains sudden appearance, Clary and her friends must team up with Harry Potter and his friends, before the world of the wizards and shadowhunters collide in a catastrophic way!
11 parts