Doctor Who: Doom's Day (Doctor Who: Doom's Day #2)

24 hours to find the Doctor.

DOOM!

This lonely assassin from the 51st Century is hunting for her survival, and there's only one person who can save her: the Doctor.

Using her vortex manipulator, she'll do anything to find the tempestuous time traveler, including cavorting with the maleficent Missy.

Every hour a new adventure, every hour closer to death...