The action of the book unfolds in the Turkish-occupied Macedonia of the early 20th century, during the period of the Macedonian Struggle. Lake Giannitsa is the focal point of the clashes between Bulgarian and Greek armed forces vying for control of the region.

The author utilizes historical material based on her research in archives and personal testimonies, which she combines with fictional elements. The central heroes are Apostolis and young Yovan, guides for the Greek guerrillas in the intricate paths of the Wetlands. Around them move historical figures – such as Captain Agras and Captain Nikiforos – and fictional heroes who participate in the struggle and face the harshness of war.

The novel was published in 1937 and is a continuation of Mangka.