The Quantum Archangel, by Craig Hinton

A sequel to The Time Monster, featuring the Sixth Doctor, Mel and the Ainley!Master, and a host of other references to other Who stories, the epitome of “fanwank” (a term Hinton himself invented). Actually rather good fun, which is impressive given how awful the original story is, with a high point being the splintering of the narrative into various potential parallel realities where the history of the universe has worked out differently. Hinton also does a good job of capturing the Sixth Doctor. The Home Secretary has the same name as a prominent Doctor Who fan, but when I checked with her she thought it must be coincidence (because she was not yet prominent when this was written). Above average, I would say.