Christopher Coates 
The Assassin Awakens [EPUB ebook] 

Tasha Salen is a loving wife and mother. She is trained as a medical professional, but secretly awaits the next phone call for her other career.
A call that will mark her next target.
Assassination isn’t a trade easily broken into, and she has to prove herself every step of the way. Unable to deny the thrill of the kill, she secretly builds her career as an assassin, gladly taking any job they have for her.
Seeking out those that have use for her new talents, Tasha experiences the pain and challenges this new life brings. But what will she do when the lives of her family are threatened by someone wanting to control her and her talents?