What do you get when you combine a retired Navy SEAL, a former librarian, and a big mystery? You get an adventure that will keep you on the edge of your seat! "The Mystery of Callahan's Bookstore" is a thrilling tale of danger, intrigue, and romance. Thane "Hawk" Hawkins is feeling lost after leaving his corporate job, until he's approached by his friends at Callahan Security with an interesting proposition: complete a small favor in exchange for a dangerous and mysterious adventure.

But little does he know, their request will lead him straight into the path of Remington "Remy" Tanger, a former librarian turned bookstore owner who's hiding a secret that could get her killed. As Hawk and Remy navigate their way through danger and mystery, they find themselves inexplicably drawn to each other.

But they're determined not to fall in love, no matter how much fate seems to be pushing them together.

Will they be able to solve the mystery before it's too late? Find out in "The Mystery of Callahan's Bookstore".