The Wordsearch Murders

Margaret Dexxman is surprised when she receives a Wordsearch puzzle, but no clue to its contents. Careful examination however, reveals a woman's name, and within hours her body is discovered.
Several other puzzles arrive over the next few weeks, and each time a body is discovered less than a day later.
Margaret is devastated, when her dearest friend Samantha is also named and then later turns up dead.
Six times she receives a puzzle, and six times someone dies. The Police and Margaret, have no leads at all, and are at their wits end, particularly when a copycat leads them briefly down the wrong track.
Six murders are now attributed to the person that they have called 'The Wordsearch Murderer', but everyone is stunned when a seventh puzzle is received, and it names Margaret Dexxman as the intended victim.
Margaret and her friends must now utilise all of their skills, and not a small amount of luck, as they struggle against the odds to keep her alive.