A Camden Passage furniture dealer licks the dust. . . his antique shop colleague is murdered in bed with his mistress. . . and it's up to ex-cop Ed Buchanan to find out why. The masked killer, X, has been systematically eliminating the devious dealers who formed a ""Ring"" at the auction of the Trewartha collection. You'll be biding your time too--an opaque, dankly atmospheric curiositÃ‰.