In the Dark by Lynette Eason

They must bring to light the secrets of a murderer before becoming victims themselves.

After accountant Steph Cross’s friend and coworker is killed in a car accident, she discovers cryptic clues while cleaning out the woman’s desk. The notes indicate evidence of illegal activity leading back to an ecotourism company called Bolin’s. It seems as if the death of Steph’s coworker was no accident at all, and the murderer plans to silence Steph next.
With her own life in jeopardy, Steph works with Detective Tate Cooper and his partner Cole Garrison to decode the contents, desperate to find out who killed her friend. Unfortunately, the killer is bent on keeping secrets buried while Tate is determined to crack the case before someone else gets hurt. But can he protect the woman who has so quickly laid claim to his heart?

For fans of clean romantic suspense and short reads, Lynette Eason threads a thrilling story of criminals, law enforcement, and a murder mystery that will leave you breathless.