It was a fortunate thing or that's what Ezana wanted to believe. Right before the full moon, her mother's carriage arrived at the front gate, Kyzen took that chance to inform mother about Artha's current condition and she immediately told him to 'wake' Artha from his own ability.
Ezana was doubtful at first, knowing fully well what kind of consequences Artha could receive if he was stopped during recalling his memories, her doubt vanished when her mother presented a bottle of potion Kyzen should pour before casting any spell with the purpose of breaking apart Artha's memories.