On the terraformed ice planet of Isen IV, the Doctor and Clara discover a monstrous Hyperion has been awakened at the planet's core. Can they halt the rampage of a living star, in the middle of the celebrity wedding of the century, before it escapes to conquer the galaxy? And when Clara and the Doctor land in India, a conspiracy hundreds of years in the making comes to light! Collects Doctor Who: The Twelfth Doctor #1-5.