While an incident at a nearby school finds all eyes on Gossip Girl, Julien and Zoya team up for Halloween. Audrey panics over bad news, and Obie grows suspicious of Zoya's new friend.
Quest roles:
Kristen Bell(Gossip Girl (voice)), Megan Ferguson(Wendy Fineman-Walsh), Ella Rubin(Bianca Breer), Katherine Reis(Pippa Sykes), Mason Versaw(Simon Ravetch), Yin Chang(Nelly Yuki), Billy Porter(Singer), Marc Shaiman(Pianist), Tamara Fay(Celeste), Jason Liebman(Dr. Gibson), Jared Reinfeldt(Victor)