'Ex Libris' (Story Code 4399040) by Peter Chomsky

Phoebe tries to help the ghost of one of her classmates, who was killed by a demon; it seems the creature wanted to stop the publication of their thesis, which proves the existence of evil…

Shannen Doherty Prue Halliwell), Holly Marie Combs (Piper Halliwell), Alyssa Milano (Phoebe Halliwell), Dorian Gregory (Darryl Morris), Brian Krause (Leo Wyatt), Greg Vaughan (Dan Gordon), Peg Stewart (Lillian), Molly Chance (Young Lillian), Paige Brooks (Cassie), Rebecca Cross (Charlene), Cleavant Derricks (Cleavant Wilson),The Goo Goo Dolls: Johnny Rzeznik (Himself)

Directed by Joel J. Feigenbaum
Produced by Sheryl J. Anderson and Jon Pare
Executive Producers Brad Kern, Constance M. Burge, Aaron Spelling and E. Duke Vincent

TX (US): 27th April 2000

Notes:
*Featuring Prue Halliwell, Piper Halliwell, Phoebe Halliwell and Leo Wyatt