This is a Christmas mystery-comedy novel with several twists. For a start, there's no snow.
But there is a Tiger Shark, which turns up in a land-locked town better known for implausible Tasmanian Tiger sightings than for appearances from monsters of the deep.
The novel is based on an island near the bottom of the world - the Australian state of Tasmania
The story turns the tables on a very unpopular former mayor in the town of Windy Mountain.
This uppity senior citizen is secretly behind a plan to demolish a much-loved Art Deco cafe on the eve of Christmas so that a lucrative tower block can be built in the heart of the town.
But while he thinks he is getting one over the townsfolk, a figure from his past returns to get revenge on him in an elaborate sting with sharp teeth.