Book excerpt: Best-selling author Bea Emerson hoped the Clue Con Writer's Conference would let her reunite with her lover, L.J. Remarchik, and give them a chance to straighten out their troubled relationship. What she didn't anticipate was murder and mayhem all tangled up with clues from the classic board game. Someone is targeting authors and publishers, and Bea might be next in line. Was it Miss Scarlett with the gun in the Library or Colonel Mustard with the wrench in the billiard room? But more importantly ? can Bea and L.J. rescue their faltering love affair before someone makes her a victim'