The much-anticipated Dr. Thirteenth is here! A fabulous mashup of the fantastical storytelling of Doctor Who and the whimsical humor of Roger Hargreaves, the book will to appeal to fans of both iconic brands! An all new Doctor Who adventure featuring the Thirteenth - and first female! - Doctor reimagined in the style of Roger Hargreaves. The Doctor, Graham, and Ryan try and come up with a fabulous surprise for Yaz on her birthday. And what an explosive surprise it is!