Over the next two days, Will and Jem help Tessa practice pretending to be Camille Belcourt, but Tessa struggles to connect to Camille’s thoughts as if there is a barrier between them. That afternoon, members of the Shadowhunters’ leadership, the Enclave, arrive at the Institute to discuss the upcoming mission. Jem, Will, and Tessa are not allowed at the meeting, but they hide in a closet to spy on the meeting through a vent. Henry is late to the meeting, which makes it difficult for Charlotte to maintain control, as several of the older, male members do not respect her leadership or her report about de Quincey. The Enclave agrees to the plan to send Will and Tessa in disguise to de Quincey’s party, with a group of Shadowhunters ready to raid once there is evidence of de Quincey breaking the Accords.

Will and Tessa, who is disguised as Camille, travel by carriage to de Quincey’s home for the party. Tessa is concerned for her safety and her ability to keep up the disguise, so Will encourages her using lines from A Tale of Two Cities. Will holds Tessa’s hands and they share a moment of tenderness. Tessa’s feelings for Will open her mental connection to Camille, and she is able to embody her personality, hearing advice from Camille about the party in her head.