. "Interference: Book Two"@en . . . . "ISBN 0-563-55582-3" . . . . . . . . "Interference \u2013 Book Two: The Hour of the Geek is an original novel written by Lawrence Miles and based on the long-running British science fiction television series Doctor Who. It features the Eighth Doctor, the Third Doctor, Sam, Fitz and Sarah Jane and K-9.The book also marks Sam's departure, the introduction of new companion Compassion, and culminates in an alternate regeneration for the Third Doctor."@en . .