Because of FallClan's rough history with the Renegade Regime, Shiningstar decided to post guards specially trained to fight in the dark confines of the caves where their hostile neighbors reside. These cats are superb fighters, agile and sneaky in the night, and the silent protectors of the Clan. They spend the majority of their time in or patrolling the caves, rarely to be found in camp or around the other warriors. When a cave guard returns to the surface as a senior warrior, their apprentice steps up in their place. When you do see them, be sure to thank them for their services.
Since Madstar created peace with the Regime, the Cave Guards have become a peacekeeping group of ambassadors, who spend their time going back and forth between FallClan and Regime territory to ensure all is well. They still mainly reside in the caves out of habit more than anything else. They continue to be an elite group of cats, and may be sent on patrols deemed too dangerous for the average warrior.

If they were to make a return, there would be a plot centered around the need for them again.