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

 * Ace remembers the Dalek Civil War. (TV: ''Remembrance of the Daleks)
 * The Eighth Doctor would later encounter a pacifist Dalek community, with children playing and flowers, but in a dream sequence. (AUDIO: Tangled Web)
 * Ace initially assumes all TARDISes look like police boxes, until the Doctor explains how his TARDIS's chameleon circuit is broken. (TV: An Unearthly Child)