This article tells the story of a child who was called "Nightingale" by the guerrillas. He cleverly used bird calls to inform the guerrillas, and introduced a group of German invaders into the guerrillas' ambush circle, so that the guerrillas were completely wiped out. The story of German invaders.

The background of this article was during the Soviet Patriotic War. It is one of the representative works of Soviet Lithuanian writer Tswerka.