The Threshold (short story)

 was a short story published in the Endgame graphic novel, detailing the story of the Threshold by recapping COMIC: Ground Zero.

Summary
to be added

Plot
to be added

Characters

 * Seventh Doctor
 * Peri Brown
 * Susan Foreman
 * Sarah Jane Smith
 * Ace
 * Isaac
 * Dixon
 * Eighth Doctor

Continuity

 * The Doctor regenerates in San Francisco while battling "an ancient enemy". (TV: Doctor Who)
 * The Eighth Doctor abandoned his previous incarnation's manipulative streak, vowing to be neither player nor pawn. (PROSE: Vampire Science)