Bart did his best to shadow Cass, holding back when she did one of those open runs, waiting to make sure nobody reacted before following. It was those moments when they weren't together that were probably their most vulnerable. If, or more likely, when they got ambushed by the people down here, he'd be on the defensive from the get-go.

"You scout this way before?" he asked in a soft whisper, the next time they were close enough for a word or three. Not talking was safer, but hand signs only covered so much, and Bart wasn't as adept at reading body language as some.