March Books 3) Cat's Cradle: Witch Mark, by Andrew Hunt
The Seventh Doctor and Ace find themselves in Wales dealing with peculiar mythological creatures leaking through from a parallel world, an adventure that self-consciously references both Delta and the Bannermen and Survival. This is one of the least impressive Doctor Who books I have ever read, and certainly the worst New Adventure that I have got to so far. No matter what you may think of Torchwood, it did this plot and setting rather better, several times. I see various fan sites excoriating the limp writing, flabby characterisation and unresolved plot lines of this book; I shall add a complaint about Welsh and Irish names being randomly jumbled together with unicorns and centaurs, because it's all mythical, y'know. Thanks to cassiphone for supplying my copy, but it is now destined for the mooch list.
(And I still do not see much linkage between the three Cat's Cradle books.)