Something inexplicable has happened to time, throwing the Doctor and Clara onto a hostile planet with no idea what's going on. An old foe has arisen, a danger unlike any they've faced before. The pair will need to join forces with a nearly-forgotten friend, and travel through the depths of the past to come full circle and find both the beginning and the end of an age-old Mystery.
Doctor Who - Rated: T - English - Adventure/Sci-Fi - Chapters: 33 - Words: 56,826 - Reviews: 63 - Favs: 25 - Follows: 30 - Updated: 5/11/2017 - Published: 10/12/2016 - Clara O., OC, 12th Doctor - Complete