"Cheliax, Asmodeus and our agents may not hinder you from departing at any time, should I choose to do so, nor from earning such money as may be required to pay my passage, nor from trading for such passage at its customary fee, nor by any magic or other means take my knowledge from me or prevent me from retelling it, except insofar as this would contradict normal procedures for protecting the world from destruction, which do exist. The other terms are in broad strokes acceptable to us. Shall we work out the details?"

"Cheliax, Asmodeus and our agents may not hinder you from departing at any time, should you choose to do so, nor from earning such money as may be required to pay your passage, nor from trading for such passage at its customary fee, nor by any magic or other means take your knowledge from me or prevent you from retelling it, except insofar as this would contradict normal procedures for protecting the world from destruction, which do exist. The other terms are in broad strokes acceptable to us. Shall we work out the details?"

It is a concession on top of what was communicated by Asmodeus, which was just that they had to let him go eventually, and not torture him, or cause him comparably incapacitating kinds of harm. She probably has to make it, though. If they can't hurt him they need him cooperative and he is smart enough to notice if she has a brilliant justification for not giving him even the most reasonable of the things that he wants, and to treat that as information, of which he already has rather too much.

"Cheliax, Asmodeus and our agents may not hinder you from departing at any time, should you choose to do so, nor from earning such money as may be required to pay your passage, nor from trading for such passage at its customary fee, nor by any magic or other means take your knowledge from you or prevent you from retelling it, except insofar as this would contradict normal procedures for protecting the world from destruction, which do exist. The other terms are in broad strokes acceptable to us. Shall we work out the details?"