The Sunday Times top ten bestseller from the author of The Midnight Library and The Humans. HOW MANY LIFETIMES DOES IT TAKE TO LEARN HOW TO LIVE? Tom Hazard has a dangerous secret. He may look like an ordinary 41-year-old history teacher, but he's been alive for centuries. From Elizabethan England to Jazz-Age Paris, from New York to the South Seas, Tom has seen it all. As long as he keeps changing his identity, he can stay one step ahead of his past - and stay alive. The only thing he must not do is fall in love. But what if the one thing he can't have just happens to be the one thing that might save him?