The “Oto and Leo” Agency

Oto and Leo are twin brothers. They tell everyone they are sixteen years old, but it’s plain to see for anyone that they’re talking nonsense, isn’t it? However, the brothers themselves believe they aren’t lying—because if you add their eight years together, it really does make sixteen.

Oto and Leo have founded their own detective agency. Meet the two clever brothers and solve 20 exciting investigation cases together with them!

• Develops logical thinking
• Trains observation, patience, and focus
• Promotes literacy and the joy of reading