In the height of Winter, enough resources were collected to craft the curse.
Aurin had crafted a cursed mimic. A fishman, that looks and acts alive, but isn't. It's purpose is to enter the Fishmen settlement under the the lake and spread the Curse of Murk Water.
The Curse of Murk Water is an invention of Aurin's. It spreads like a virus and only affects the Fishmen. It first muddles the mind, then makes the accursed blind. Lastly follows a violent bout of insanity to where the accursed to try to pop open their heads, until they succeed. The cursed mimic is quite the sinister tool.
As for Ichika, the Oni princess has fully embraced sex after her first breeding session. Now Ichika breeds with a random tribesman every other day when she gets worked up. Kalona was also happy to see that she still has full control over monsters born from Ichika.
Today, Kalona was speaking with Duros. Kalona had asked, "So this cursed mimic will clear them all out then?"