An advent calendar like an escape room: 26 puzzle cards lead through the exciting adventure in the jungle. As a researcher, you go into the depths of the rainforest in search of rare species of monkeys. Detailed illustrations on the cards in each compartment together with colorful puzzle elements provide mysterious puzzles. The puzzles are based on pictures and are all age-appropriate. symbols instead of numbers. Only those who solve the riddle of the day will find out which symbol is behind the secret of the next day. On the back of each card there is a tip for the respective puzzle. In addition, the solution can be decoded with the help of the solution magnifier. Day by day, riddle by riddle, time is running out and it's already Christmas Eve! 1. Free take-back of used batteries Batteri.