Ceril and the Carnillean family features heavily in the Hazeel Cult quest, in which the player has the choice of either stopping or aiding the Cult of Hazeel, a group of fanatic devotees to the Zamorakian Mahjarrat, Hazeel, who once ruled over the area now known as Ardougne with an iron fist. He was defeated in the Fourth Age by the ancestors of Ceril Carnillean, and the cult now hopes to get revenge on the family for that insult, and then summon Hazeel once more. He appears alongside other residents of East Ardougne in the Ratcatchers Mansion.