Two of the best mystery writers in America team up in this interesting Law and Order-type experiment. In the first half of the book, a sexually voracious architect prowls the dark corners of New York looking for some action before he heads back to his frigid L.A. wife. In the second half, a prostitute"s grisly rape-murder engages the attention of the guys (and girl) in blue. What"s the connection between the murdered woman and the obsession-ridden architect? A string of coincidences that make the reader expect a surprise ending, of course. But it doesn"t happen, which makes one wonder why the two authors (who happen to be the same person) bothered with the gimmick. Still, both Ed McBain (author of the 87th Precinct novels) and Evan Hunter (his more literary and much sexier incarnation) are old pros, so the pacing, character development, and thorough knowledge of police procedure and human nature that mark this tidy little mystery make it a pleasant enough diversion. A new McBain or Hunter is always cause for celebration, and Candyland, which is a lot grittier than most police procedurals, will titillate their many fans until either (or both) comes through with a new thriller. The distinct narrative voices of the multitalented writer are on view here; although the writing styles aren"t different enough to make it more than a parlor trick, the result is still twice as good as most of the season"s new offerings. --Jane Adams