Doctor Who: The Fifteenth Doctor: The Prison Paradox (Doctor Who: The Fifteenth Doctor: The Prison Paradox #2)

20TH ANNIVERSARY OF THE 1ST APPEARANCE OF THE SLITHEEN! In the deep water containment unit of the prison station Pantopolis, evil lurks. As the Doctor and his squad of unlikely allies swim further into danger, underwater menaces are revealed and they have a score to settle.

Elsewhere, Belinda gambles for her life as the mysterious Warden’s plans are revealed...