X-Ray in the Xanth. Lovely Lethal Gardens Rewind, #3

Something in Doreen's last case sends Chester and Darren out with shovels to a location she'd never seen before. When she finds out why, she's all in-particularly when they find a body. She hates to be delighted with a new case, as that always sounds macabre, . but it's a new case, and that's always exciting to her. Yet nothing is ever simple when Doreen gets into the mix. As she slowly unravels this new mystery, the case bends and twists in several different directions, with more deaths adding to the mess.
She even gets blamed once or twice for causing extra work. By the time she's thoroughly embedded herself into this cold case and Mack's related current case, the puzzle is as confusing as any case she's ever solved. And no happy conclusion is in sight .