The princess considers the words of the aliens quietly for a long moment, looking to her father before speaking ((if he indicates for her not to talk, then ignore what she says ^_^ )).  "Excuse me, but...if you leave us as if nothing had happened, what will happen if another from your world decides to come?  We have no qualms with peaceful trade," she nods to Jason before looking back to the captain, "nor diplomacy and study.  If you have such weapons and abilities, surely there are others that would come after, are there not?"