Introducing exciting, action-packed, original fiction for younger Doctor Who fans, each containing two fast-paced, fun-filled adventures! Monsters made from moon rock are attacking an Earth farm in Heart of Stone. Everything they touch turns to stone - even people. Can the Doctor, Amy, and Rory find out what the creatures want before it"s too late? In Death Riders, the Galactic Fair has arrived on the mining planet of Stanalan and the Death Ride roller coaster is really drawing in the crowds. But there"s something sinister going on behind all the fun of the fair. Join the Doctor, Amy, and Rory as they investigate...