Congrats to Shirley Landes for guessing the correct answer! The mystery cozy was Agatha Raisin and the Busy Body by M.C. Beaton.
See you next month when the prize will change. I will now send you an e-gift card for $20 to the bookstore of your choice (as long as they do ecards). This will help our international friends play the game and use book depository.