"", claims that Casper is not related to the Ghostly Trio, meeting them for the first time when he runs away from a ghost school run by the evil ghost Kibosh. Attempting to prove their superior ghost techniques, the Trio train Casper in his ghost abilities; when contacted by Kibosh and his assistant, Snivel, they lie to Kibosh about being his uncles so that he can remain in their care. Casper had saved the Trio from Kibosh's wrath after having impressed him when Casper ingested a bomb that saved the Trio's home from being destroyed. The Trio returned the favour by more or less adopting Casper so he would not have to go to scare school under Kibosh's orders, therefore remaining a family as Kibosh stated family stays together and haunts together.