Joslyn Chase 
The Devil’s Trumpet [EPUB ebook] 

A chance discovery. An insidious evil.
Dr. Luka Sims holds a dangerous secret in her head, the last one alive to protect it. Alone and in danger, she runs for her life, targeted by a team of determined hunters.
Drawing upon her memories and her skills as a chemist, Luka evades her pursuers. But it’s only a matter of time before the devil blows his trumpet and all hell breaks loose.
Fans of Dean Koontz, Thomas Perry, and CJ Box will find a new favorite, so don’t miss this suspense-packed thrill ride.
The hunt is on!