I think the right thing to do is to free them. If they cannot be saved from the Taxara, leaving them in the hands of their tormentors is cruel.

( there's a lot of if and unknown, and they might not have time to get answers to all their questions. but looking at the information he has? graham would say giving them freedom, even the freedom of death, would be preferable to letting the Taxara continue to use them against their will. even if they likely enough had no will left to go against. )