Titans, Vol. 1 #33A

Lies
Argent is unsure about Titans guest Epsilon, so she asks Rose Wilson for help. Rose advises she track down Theta, the woman Epsilon seemed to know. With a little social engineering, Argent gets Theta's address. That leads to a fight, which leads to Argent learning that her father hired the pair to infiltrate the Titans and bring them down. Confronted, Epsilon denies this. And Lilith seems to confirm that telepathically. Argent is convinced, but that's because she doesn't see Epsilon converse with the D.E.O. orphans - what's his connection to them?
Release Date: 2001