Avak-37 - the first and long-lost planet of Cosmo-Frogs is waiting for real heroes! The mysterious snow mountain contains many secrets. A true frog Princess, frozen in ice, is waiting to be rescued somewhere out there. But friends are near. The spaceship of the Ancient Frogs is about to take Drimko and a team of braves to a real ice hell!

The book is very good and funny. It teaches children mutual support, the importance of a healthy diet and respect for the environment.