Who Chooses the Chosen?. Chosen One Protective Services, #1

The Texas drought of 1957 has broken, and a farmer's son with a big imagination is suddenly given the chance to live out his dreams. When a mysterious old wizard appears and offers the boy a chance to save a fantastical and magical world by slaying a dark lord, Rusty follows his heart, and is whisked away to another dimension. But his brother Cyrus, a broken Korean War Veteran, is less than thrilled about Rusty's abduction.
He pulls out all the stops to find his brother, while dealing with hostile small-town neighbors, insane and incompetent secret agents, and his own family's quirks. While he does this, Rusty finds himself stuck in a dark and grim world where life is cheap, and he must struggle to survive. This is where it all begins. This is the year that humanity starts fighting back against the magical jerks who would steal our children.