Enjoy a unique experience in Heilbronn directly with your smartphone. Let yourself be whisked away into the story of the new energy of electricity that was introduced in Heilbronn. Our city rally has been lovingly researched by us on site and has a real connection to Heilbronn. As you solve the puzzles in this exciting story, you will pass by Heilbronn's most beautiful sights. You solve the puzzles directly with and at the sights. Work in a team (2-6 people per group) to solve the case. Are there more than 6 of you? Then we recommend splitting up into several small groups, otherwise experience has shown that not everyone is well integrated into the game. You can also test which group is the fastest! Use our city map to puzzle your way from station to station along the story. Solve the puzzles at the most beautiful sights. Move at your own pace and take a break whenever you want.