Moldymoor is a swampy area of Fantastica where will-o'-the-wisps live. After Moldymoor begins being swallowed by the Nothing, the will-o'-the-wisp Blubb is sent as a messenger to the Ivory Tower to beseech the Childlike Empress for help. Other inhabitants of Moldymoor include frogs such as Foggle, the father of the frogs, in Lake Foamingbroth. The lake and its inhabitants were eaten by the Nothing.