What would happen if you took a swim outside a deep-sea submarine wearing only Speedos? How long could you last if you stood on the surface of the sun? How far could you actually get in digging a hole to China? And Then You're Dead offers serious answers to these horribly interesting questions. Paul Doherty and Cody Cassidy explore the real science behind these and other fantastical scenarios, offering insights into physics, astronomy, anatomy and more along the way. Illustrated with straightforward technical art and leavened by small doses of dry humour, And Then You're Dead is both scientifically informative and gruesomely entertaining.