Muddyfoot

a quiet, withdrawn tom.

Not permitted to leave the camp after he was caught trying to escape one night. 

very malnourished - kept in solitary confinement and barely fed the scraps of whatever food makes it through all the clan members. Has essentially given up and has accepted that he will spend the rest of his days rotting in these caves until his dead body is carted off into the tunnels to wither into the stone.