Celebrating the first-ever female Doctor and her all-new season of the hit Doctor Who TV series on BBC America! Bestselling author David Solomons delivers a super-smart and vibrant new heroine in an original adventure bursting with action and humor! The Doctor has never faced a challenge quite like this. A sinister school where graduation means death! A monstrous mystery lurking beneath a quiet London street! A desperate plea for help delivered by... hang on. A potted plant?! The galaxy is in terrible danger, and only a Time Lord can save it! But to do so, she must break into the ancient Galactic Seed Vault where, at its heart, lies a secret: Vault 13. The Vault has remained unopened for millions of years and is located on a remote and frozen world - from which nobody has ever returned alive... Can the Doctor and her companions Yaz, Ryan, and Graham, uncover the shocking Secret in Vault 13?