The School of Noble Mice

The sensible mouse Mus, the romantic Smussi, and the determined Fri are first graders at the School of Noble Mice. By chance, they discover a secret underground passage that leads to a castle and realize that someone wants to steal the treasures. They conduct an investigation and devise a plan to stop the wrongdoer and free the prisoner of the castle.
"The School of Noble Mice" became a finalist in the "Best Youth Bestseller" contest and was also included in the longlist of "New Book".