Prather, Richard S.: Dead Man's Walk
Shell Scott is up to his usual barely-believable antics. This time in the Caribbean where he battles the local witch doctor, and a bunch of hoodlums (can't forget those) who want to take over the only hotel on the island (Shell owns a small chunk of it) and turn it into a casino. To beat the hoods he needs to learn a little about voodoo and, contrary to what you might expect from Shell (not exactly Mr. Sophistication), he treats voodoo with respect.