In this rare treat for science fiction fans, the prolifically talented Iain M Banks launches the latest novel in his bestselling Culture series, The Hydrogen Sonata, 25 years on from the first edition, Consider Phlebas. The ancient Gzilt civilisation is preparing to elevate itself to the infinitely more rich and complex existence of Sublime, but first there is a mission to track down the oldest person in Culture, a man over 9,000 years old, to uncover some truths about the founding of society. Writing as Iain Banks, he has also published many highly acclaimed mainstream novels including The Wasp Factory, The Crow Road and Stonemouth.