Gussi. The Defender with the Fiery Violin

The village Defender in the desert has only one rule: when the sun sets, the gates must be kept closed. This is what Gussi must learn when the main Defender, her grandfather, is summoned by the Council to the desert... beyond the village, leaving the girl in charge. But on her first night on duty, Gussi breaks this rule. A mysterious girl arrives in the village seeking refuge, forcing Gussi to open the gates. A dreadful plague and destruction seep through the walls of the village at that moment, and now all the villagers turn to the young Defender. Gussi will have to seek help from unexpected allies to save her home. Can Gussi save the village from doom and restore it to its former glory before her grandfather returns?