Interstitial Insecurity (short story)

 was the seventh short story in The Target Storybook.

Publisher's summary
to be added

Plot
Put on trial by the Time Lords and in a state of shock from seeing Peri’s death, the Doctor is allowed access to the Matrix to prepare his defence. Inside the virtual world containing the sum knowledge and experience of the Time Lords the Doctor meets his ‘Helper’, a wheelchair-using young girl named Anosia. Exhausted from scanning through so many of his future adventures, the Doctor takes a tea break with Anosia; she in turn shows him an adventure that will help prove his innocence: an incident aboard the Starship Hyperion III. When the Doctor challenges her choice, Anosia explains that the Time Lords have already chosen this adventure as his evidence, and have made several incriminating edits, including the removal of the Doctor planting an herbarium with Vervoid seeds modified to assure a benign continuation of their species. Knowing this will ensure the Doctor is found guilty of genocide, Anosia promises to transfer the original recording into the trial. The Doctor returns to the courtroom, his time spent inside the Matrix wiped from his memory. Meanwhile, the Valeyard pays another visit to Anosia: after breaking his promise to free her from the Matrix, the villain stops the upload of the recording that will exonerate the Doctor

Characters

 * Sixth Doctor
 * The Inquisitor
 * Keeper of the Matrix
 * Anosia
 * The Valeyard

Worldbuilding

 * The Valeyard seems immune to the effects of the Matrix's mind wipe. He also knows how to manipulate data so external layers show no sign of disruption.

Continuity

 * The Doctor is still contemplating his betrayal of Peri and saddened by her death. (TV: Mindwarp)
 * One of the other future segments the Doctor views involves Young Queens in England with the older companion. The Doctor says he "likes the cut of her jib." (AUDIO: The Marian Conspiracy)
 * The incident on the Hyperion III was originally meant to end with the Doctor planting a new crop of less aggressive Vervoids. (TV: Terror of the Vervoids)
 * Anosia reminds the Doctor of Charlotte Pollard. (AUDIO: The Condemned)
 * The Valeyard has the Key of Rassilon, and the Doctor access the Matrix via the Seventh Door. (TV: The Ultimate Foe)