From the author of How to Stop Time, Matt Haig, comes a new bestselling novel. When Nora Seed finds herself in The Midnight Library, she has the chance to live her life differently, undoing all of her regrets and working out her perfect life. Things aren’t exactly how she’d imagined them and her choices put her in danger. Time is running out and Nora needs to answer the ultimate question, what’s the best way to live?