Danio margaritatus bodies in the Inle drainage, the water is slightly alkaline. The habitat is heavily vegetated with Hydrocharitaceae similar to "Elodea" (water weed). The celestial pearl danio shares its habitat with a very few fish species: a "Microrasbora" similar to "M. rubescens", a rosy loach ("Yunnanilus", possibly a new species, and the dwarf snakehead "Channa harcourtbutleri". The latter species presumably is the only known significant predator of "D. margaritatus". The species is locally fished for food to some extent; it is dried and bought as a protein source by poor people. A can of some 500 "D. margaritatus" sold for food
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