The Missing Twin

This is an Apple Books audiobook narrated by a digital voice based on a human narrator.
The secret between them 

Angela Taylor knew her sister was in trouble. For anyone but a twin, her instincts would seem crazy, and her actions crazier. Picking up and moving herself and her daughter, Celia, to Scorpion Ridge and asking questions put them all at risk. Even more risky was trusting Jake Farraday, the handsome ex-cop turned forest ranger. Years in witness protection had taught Angela to trust no one. Yet with Abigail missing, Jake was her only hope, and she found herself wanting to share more of her past with him. And more of her future. But did Jake have his own motives for helping Angela?