Charlotte's father was hunting for treasures all his life. He was a genius, as well as an archaeologist, historian, and philanthropist. All these qualities were used for just one purpose. And at last, he discovered reliable information about untold treasures! But, a criminal clan found out about his research and the bandits decided to steal all the treasures! Moreover, they wanted Charlotte to do all their dirty work for them...

Take a trip through Europe together with Charlotte in a hot air balloon, seeking out hidden treasures and helping to expose the criminals to the bright glare of truth and justice.