Silent Hunter

This is an Apple Books audiobook narrated by a digital voice based on a human narrator.
Edge of Survival 

Trapped on a deserted island and targeted by a deadly hunter, camp director Nicky Trailer must turn to the one man she vowed never to forgive. Luke Wolf abandoned her without a word years ago and crushed her girlhood dreams. When he suddenly returns to help her save her beloved summer camp, she doesn't want to forgive and forget. But with the mysterious hunter picking off campers one by one, Luke is the only one who can help her get off the island. With danger stalking their every move, can Luke and Nicky move beyond their past and work together to survive?