|'The Ripple Effect'
by Malorie Blackman
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 the TARDIS lands on Skaro, the Seventh Doctor and Ace are shocked to discover the planet has become the universal centre of learning, populated by a race of peace-loving Daleks. Ever suspicious of his archenemies' motives, the Doctor learns of a threat that could literally tear the universe apart...
*Featuring the Seveth Doctor and Ace
*A Puffin Books 'Doctor Who' novel
*This novel was part of a series of ebooks published by Puffin over the course of 'Doctor Who's 50th Anniversary year; each book featured a different incarnation of the Doctor, and was billed as a 're-imagining' of the character; I am therefore not considering them as canon
*The story was later released in paperback form in November 2013, in the anthology 'Doctor Who: 11 Doctors, 11 stories':