Midnight at the Mansion by Steven K. Smith

 visit to historic Maymont estate is anything but a walk in the park.

Sam, Derek, and Caitlin have tackled countless mysteries together, but a visit to Maymont, Richmond’s Downton Abbey-like turn-of-the-century estate, brings danger at every turn. A chance meeting with a mysterious stranger suddenly becomes a frantic chase and reveals a desperate message to “save the eagles.”

When Sam receives an ominous warning in the middle of the night, Derek and Caitlin devise a plan that leads them high into the Blue Ridge Mountains. To save Maymont’s stolen eagles, the kids must find a secret abandoned palace, survive the wilds of the Appalachian Trail, and avoid capture by criminals, all before midnight.