With This Puzzle, I Thee Kill

Wedding bells are ringing, and though Cora Felton is no stranger to saying "I do," she has a special feeling about her walk down the aisle with hotel owner Raymond Harstein III. And who better to be maid of honor than her beloved niece, Sherry? From the start Sherry has reservations about her aunt's upcoming nuptials, and when the first of a series of threatening cryptograms arrives, it's clear someone else does, too.