After a time, the population changed. Newcomers arrived. They established themselves in the area and mixed peaceably with the aboriginal population. In fact, the inhabitants today are a mix of the newcomers and the aborigines. Neither ''tribe'' exists anymore. Well, a few indigenous Unknowns still exist.
The new people also brought their religions, but they kept alive the Fish Friars. Darby's population remained more pure in the newcomer blood; Lower Darby intermingled more with the aborigines. Darby considers the Lower Darby people as inferior - a disdain for all things Lower Darby.
For a time all got along well. In fact, the Fish allowed a prized Barley crop to grow along the river in Lower Darby This is the key ingredient in making the much revered brew: Nuoc Mam (That's Vietnamese for fish water). Since the Barley was grown in Lower Darby, the Darby-folk were not happy. So they started to brew their own beers. They were not as good as the Nuoc Mam. The Fish Friars also regulated the flow of Nuoc Mam. The Darbians thought that they could make a ton of money by stepping up production. Their own beers were decidedly inferior. So, they conspired to steal the secret of the Barley. In the process of stealing some Barley seeds, they discover that the secret is not the Barley itself, but rather has its ultimate source in its growing near the Fish. As a result, they learn they cannot grow that Barley elsewhere. Although, the Barley can be grown away from the Fish it still is missing that special something that the Fish provide.
Dismayed, the Darbian Master Brewer, decides to steal the Fish. He later realizes that he has nowhere to keep them. So, the next best thing, is to destroy Lower Darby's Barley by destroying the Fish. This is not a simple task - so he lays plans well and careful. He purchases the skills of a free-lance Sorcerer named Kasreyn. The Fish present a great challenge to the Sorcerer. In the course of the research to destroy the Fish, Kasreyn tips his hand to the the Fish Friars. The Friars become aware of the coming treachery (they have an Animist, he is the Head Fish Friar - his name is Slartibartfast, c.f. section 3.6). They cannot prevent Kasreyn from killing the Fish outright. However, they can hide the Fish from Kasreyn until such time as they can protect the Fish.
The Fish are spirited away to the Hills by the Friars. This of course infuriates Kasreyn. Even to this day, he still desires to make good on his promise to destroy the Fish.