As revealed in The Last Olympian, at some point shortly before he left Camp Half-Blood, Luke Castellan confronts Silena, charms her, and persuades her to become his spy by telling her that she would be saving lives… See more

The Sea of Monsters
Silena is shown to be in charge of the Pegasus stables. She gives Percy Jacksonhis first riding lesson on a pegasus. Percy thinks Silena is very pretty and describes h… See more

The Lost Hero
Although deceased, Silena is mentioned by Annabeth while she gives Piper McLeana tour of Camp Half-Blood, who says that Silena was a great person. When Piper asks what … See more

It is unknown what Silena definitely looks like, as her appearance tends to change between books. In The Demigod Files, it said that her hair was black and her eyes chocolate brown. In The Last Olympian, she had br… See more

She is noted to be kind and caring to the other campers. Percy once described her as one of the nicest girls in the Aphrodite Cabin (far less shallow and conceited than most of her cabin mates), also saying that Silena was … See more