Adina Donati, Accidental Sleuth Dead Amid the Dogwoods, Book 5, (Paperback)

Nothing disrupts a celebration quite like an uninvited corpse.

Adina already knows the city can be a dangerous place. That's why she's looking forward to a stress-free weekend in rural Pennsylvania with her favorite detective. Maybe not all that stress-free. They are attending an engagement party and Adina will be meeting Jonathan's family for the first time.
Except the holiday weekend takes a deadly turn when leading industrialists, a hard-core environmentalist, and a bevy of wealthy partygoers converge on the Riverfront Lodge, and the couple stumbles upon yet another dead body. Drawn into the ensuing investigation, making a good impression on Jonathan's parents is the least of her worries.