Mel. The debut adventure of the Seventh Doctor, Time and the Rani, begins with the Doctor regenerating with little explanation given; Russell's novel attempts to provide a "final story" for the Sixth Doctor and effectively serves as a prequel
to Time and the Rani.
Continuity
The end of the novel suggests another explanation for the Doctor's regeneration into his
Frobisher, as well as an alternate version of Mel who is a half-Silurian
hybrid.
The unofficial novel
Time's Champion, written by Chris McKeon based on notes by the late Craig Hinton, implies that the Doctor's endeavour there is a new timeline created by the Sixth Doctor in his first act as "Time's Champion" as he attempts to save Mel from the clutches of Death, who would become a frequent nemesis to the Seventh Doctor in the Virgin New Adventures
novels.
Notes
The novel was originally titled Future Nostalgia.[1]