Learning of a dormant Weeping Angel, Octavian had River Song released into his custody to help in return for earning her pardon for the "murder" of the Eleventh Doctor. Octavian had her infiltrate a party being held on the Byzantium to confirm the Angel's existence and try neutralising it. While discussing their plan, Octavian asked Song whether she had informed the Doctor of her true identity. Octavian made sure she kept her mouth shut about it, lest he refuse to help.