People are disappearing in Montreal. Jack and Mojo believe they are being drawn into the "Other City", an ephemeral city that appears at random, and suddenly vanishes, taking people with it. There's a blind street musician whose haunting accordion echoes down the narrow streets of a city that may only exist somewhere "next door to reality".

People feel there's something "witchy" about Amy. She is tormented by an oval "light" that appears at random. Amy fled to Costa Rica, where she was born, but the light has reappeared. Jack and Mojo try to help, but something very powerful is happening, and it may be traced back to an old African god.

Somewhere in the tropics, yet another beach resort is being built. As they bulldoze a road through a valley the locals consider sacred (the dwelling of a Nature Spirit), the jungle begins to spring up everywhere else. At Maria's Cafe', chairs are sprouting leaves, vines are creeping over the counter, and orchids are growing from the walls. Meanwhile, Jack, Mojo and Claudine are attempting to prove the Nature Spirit not only exists, she may have just begun to "even the score".

While Jack Flanders is scuba diving in the great barrier reef off Belize, he discovers a sunken pirate ship. On board are two skeletons poised as though playing chess, and every time he returns, the pieces have been moved. One of the pieces looks a lot like Jack.

Jack Flanders and his crew sail to a mysterious island known as Key Diablo. When a fog moves in, all color seems to vanish, and everything turns into black and white. The islanders, dressed in clothes from the 1940s and '50s, appear to have stepped out of an old Hollywood film noir. And soon our heroes, Jack, Claudine, Mojo, Dominique, and Rose, find themselves playing characters that are dressed to kill.