Peering down at the newly arrived group swinging their pickaxes Arla decided these were the ones.  They were chomping at their bridles, eager to escape, to run, to fight their way free.  In the past there were the occasional warriors but each was surrounded by farmers and servants. 
 This was the most concentrated selection of fighters she'd yet seen.  She was going to have to make contact with them at the end of their work day.  Then, sometime in the night she would return with the keys to their cells.

All in all, the green skinned twi'lek saw it as a good plan.  She just hoped none of the prisoners would do anything stupid and get themselves beaten to death first.