Mummichog from a Narragansett term which means "going in crowds", which reflects the mummichog's strong shoaling tendency. Colloquial names include mummy, killie, salt water minnow, mud minnow, mud dabbler, marsh minnow, brackish water chub, gudgeon, and common killifish. Some of these terms may lead to confusion: the term minnow should be reserved for species of the family Cyprinidae, the mudminnows are members of the family Umbridae, and the name gudgeon is used for various bottom-dwelling species of cyprinid, eleotrid, and ptereleotrid fishes, none of which belongs to the same family as the fundulid mummichog. The body of the mummichog is elongate
Creature of Havoc languages and elven magic. The player begins the adventure as the "creature of havoc" of the title, an unidentified, violent beast with no concept of who or where they are. The creature gradually recovers the ability to reason and communicate, and must learn what has happened and why. Because the creature cannot make its own decisions, it is governed by instinct. Once it finds the Vapour of Reason, it is able to make choices. The creature proceeds through the dungeon, killing a number of adventurers before finding the Vapour of Languages, which allows the creature to understand what others are