The Dark Affair. Ben Hood Thrillers, #6

Ben Hood isn't all that comfortable with BDSM practices. He's never actually spanked anybody, and no-one has ever spanked him! When the body of his work partner's brother is found washed up on the beach of a small island off the coast of Far North Queensland, with a dog collar and chain around his neck, Ben finds himself dragged into a dark, dangerous world where only his special fighting skills and ability to survive against the odds, can keep him and others alive.