Eleven Doctors, eleven months, eleven stories: a year-long celebration of Doctor Who! The most exciting names in children's fiction each create their own unique adventure about the time-travelling Time Lord.

When Jamie McCrimmon brings the Second Doctor a mysterious book, little does he realise the danger contained within its pages. The book transports the TARDIS to a terrifying glass city on a distant world, where the Archons are intent on getting revenge on the Time Lord for an ancient grudge.