Mind Walk (A Lacey Fitzpatrick and Sam Firecloud Mystery Book 21)

Sam Firecloud’s job as a medium is pretty straightforward: along with
his partner, Lacy Fitzpatrick, he investigates hauntings, researches the
ghosts to find out what keeps them tethered to the earth plane, and he
releases them. But a new call for assistance brings a surprising
request: a neurologist wants to study Sam’s brain as he’s connecting
with lost spirits. The study is one thing, but when Sam and Lacey look
deeper, they soon realize the doctor has a hidden agenda, and it’s not
scientific at all.