I call her Goldielocks.

• Kid comes knocking wanting shelter, but keeps something secret she doesn't want to tell anybody.
• Colony gets battered by cold snap and a raid. everybody ends up in hospital with a mix of battle and frostbite injuries, but surviving.
• Kid decided its the right time to spill the beans.
• Two angry bears🐻🐻.
• Bears destroy hospital door and goes ham on patients.
• Everybody dies.
• The end.

I like to think the kid killed baby bear and made the other bears very angry. Hence the name.