The screaming inner terror is back! But it's not an agonized mess of aborted thoughts because she has a clear if wordless path to follow: just list out things she's unclear on such that it's only light or at most moderate heresy to claim they could be unclear, then wait to have whatever horrible thing happens afterwards happen.
Operating under conditions of screaming inner terror so long as you can see a way to obey orders is a universal Chelish life skill.
"Understood," Peranza says, more firmly this time.