Clockwork owl

A clockwork owl was one of Archibald Angelchrist's most prized possessions. It was given to him by a dear friend. The Eleventh Doctor studied the owl when he visited Angelchrist's laboratory. (PROSE: Paradox Lost)

Behind the scenes

 * The clockwork owl first appeared in the possession of Maurice Newbury in The Osiris Ritual, the second Newbury & Hobbes novel, which was released in 2009, two years before Paradox Lost.