You get a client, a woman who is told to be Mary Fontule. But she claims she is not Mary Fontule. Weird...
Unlike normal walkthroughs, in Nice Game Hints you can select just the puzzle you want hints for. Here are listed the puzzles for "Part 1 - Zo Wanga Isle" in Voodoo Detective. The guide you choose only contains information about that puzzle, reducing possible spoilers for other puzzles.