Nine year old Jenny knows that her two year younger brother Tim is as much of a genius as Sherlock Holmes himself. There has just never been a real mystery for him to solve. Not until this winter when the family goes to spend the first holiday in their new cottage. But despite the crisp snow and beautiful surroundings of the Norwegian mountains, Sun Top is no ordinary cottage development. During the carnival at the local hotel an expensive diamond ring goes missing. Who amongst all the suspicious characters of Sun Top is an actual thief? This is the story of how private detective Tim solves his first mystery. Written as remembered by his trusted assistant and older sister Jenny.

The 1st book in the series about Tim and Jenny.