Matrix (Perry and Tucker novel)

Matrix is a BBC Books original novel written by Mike Tucker and Robert Perry and based on the long-running British science fiction television series Doctor Who.

Summary
It features the Seventh Doctor and Ace. It also includes appearances by the Wandering Jew and Jack the Ripper. Part of it is set in an alternate timeline, featuring parallel universe versions of Ian Chesterton and Barbara Wright. The villain is the Valeyard.

Inspiration
Perry and Tucker originally pitched Matrix as a Virgin New Adventure, but were advised by range editor Rebecca Levene that the idea was unworkable.