Tessa uses her shapeshifting ability to take the form of Camille and attends a party at the home of London head vampire Alexei de Quincey along with Will Herondale, who is pretending to be her human pet. Magnus Bane acts as their guide through the house, helping the Nephilim determine that de Quincey has violated the law. During this, he admires Will's blue eyes and black hair, calling it his favorite combination.