- Goodbeast who finds the note left by Juniper and Kaylee and warns the abbey.
- Goodbeast(s) who come from the abbey to help
- Leader of the tribe of rats
- other tribal member(s)
I'd say the goodbeasts that warn the abbey and come to help also need a reason for being around, other than to simply stop the rituals. For instance, maybe someone left a research tome on the tribes and finds that what they're doing isn't just for giggles, and from that, maybe come to a solution or alternative; maybe someone else's home and lives are at risk from simply being in the area while all of this goes down. Or maybe the Juska just need to be slain. (Lots of maybes!)
To keep things simple, I'd use just the Juska tribes exclusively under the Pike banner…they're unspecified, leaving anyone else free to make up the clan, symbols, culture, and hierarchies and all that.
(Quick J-clan template, for future reference:
Nation Banner: (Pike, Spider, Adder, Owl)