Tarchna, 6th century B.C. During Tagete's day, the Etruscan community celebrates its own mythical father, and the oracles faithful to Achvizr, Alpan, Leinth and Thalna begin their purification path. They hope to honour their divinity through several sacrifices, escaping the call of the Ancient Tuchulcha, a sound that can be so loud that it threatens any other voice. Who will be dedicated to Lasa Vecuvia, the eternal Tuchulcha's rival, to bring peace back on the path to Tarchna?