Ys II: Ancient Ys Vanished - The Final Chapter
In Ys II, Zava confronts Adol at the entrance of Campanile of Lane where the execution of Maria is about to be held. She, along with her servants Zavanites, tries to stop Adol but Adol comes out a victor.
In the prequel Ys Origin, which takes place 700 years before Ys II, Zava appears as the sorceress under Dalles' command. She shows up periodically to hinder the search party's progress at Darm Tower and tries to capture the twin goddesses. Zava faces the player character at the end of the hall of reflection. She summons her strongest demons, Yogleks & Omulgun, and attacks the player character relentlessly but is nonetheless defeated.