The Ripple Effect (short story)

 was the seventh Puffin eshort released to celebrate the 50th anniversary of Doctor Who.

Publisher's summary
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 arch-enemies' motives, the Doctor learns of a threat that could literally tear the universe apart...

Plot
to be added

Characters

 * Seventh Doctor
 * Ace

Continuity
to be added