Malorie Blackman has written the seventh short story in a range celebrating Doctor Who’s 50th anniversary.
Puffin Books have been publishing the 11-part series as ebooks every month since January 23, with the final installment due to arrive on November 23, the date of the Eleventh Doctor’s anniversary adventure.
For July, newly appointed Children’s Laureate Blackman has contributed The Ripple Effect, which sees the Seventh Doctor and his companion, Ace, battle Daleks with a difference – they’re peace-loving.
A teaser for the book says that upon encountering these friendly Daleks, the Doctor, “ever suspicious of his arch-enemies’ motives, learns of a threat that could literally tear the universe apart”.
Blackman, who has “loved Doctor Who” since childhood, said that she agreed immediately when she was asked to be part of the anniversary series.