It is a few years into our future, and there are bases on the Moon. A recent survey has shown something unusual, an unknown power source. When a tall, skinny spiky-haired stranger turns up and announces he's from the Bureau of Alien Technology doing a spot check, the survey team know they've found something special. But is this special power a source of blessing or a curse?This amazing ten-book series follows the Doctor on his exciting journey to discover the origins of the so-called Eternity Crystal and the powerful artisans who have created it - the Darksmiths.