There are two theories here and I really like both of them. I'll rephrase them slightly, but I think they're both usable.
1) Due to the wars on Gielinor and Infernus, Chthonian society broke down and all the laws on cannibalism were abandoned. This resulted in powerful Chthonians being able to devour weaker ones, which lead to moral degradation and would have been a significant factor in their loss to the Avernic. For example, if the Avernic besiege a Chthonian fortress and morale (and supplies) start to waver, the Chthonians would be very quick to fall on each other and destroy themselves from within, handing an easy victory to the Avernic. The long term impact of this would be that the surviving Chthonians would be the most vicious, cannibalistic, immoral of their species because they were the only ones to survive. Any Chthonian who believed in a different path would be fairly quickly been killed and/or eaten.
2) Again due to the wars, the Chthonians needed to produce soldiers and quickly. Because the Avernic were no longer entirely trustworthy, they had to produce Chthonian footsoldiers. To save on valuable essence, the footsoldiers would have been created as simply as possible, probably little more than animals in many cases, with no higher capacities than absolute loyalty to their creator. If the creator was then destroyed, the soldiers would turn feral. Conceivably if one of these creatures gathered enough essence it could develop intelligence and sentience, although it would have no opportunity to learn culture and so would still appear feral. This may or may not have happened in the Abyss.
Great stuff!
08-Nov-2016 12:10:52