Myšák Kryštof a ponorka – Hoňková Iva (2023)

The biggest dream of little mouse Kryštof is to see what lies beneath the surface of the river. One day, he discovers a small submarine on the shore. A children's toy just the right size for a mouse. He just needs to fix it, stock up on supplies, and he can embark on a great water adventure. But what’s this? Excitement turns to dismay. The big mouse adventure turns into a rescue mission. An eel has gotten tangled in old netting, and little fish are trapped under the debris... The river has become one big dump! Will Kryštof manage to save his new friends in trouble and clean up their beloved river?