Ezunil sits in Nadun's classroom at the Council Citadel in Ulzathir during Helena Hyperion's childhood. In 2092 AX, Tazil throws a pebble at Helena during a lesson on Ulzathir's trade network; Helena avoids it, and the pebble strikes Ezunil instead. The moment exposes Helena's awakened temporal magic and leads Nadun to clear the classroom.