For the party: Zangua would be up for releasing the gnoll.
He would also suggest that they travel to the village, where they would meet at the predetermined location and wait for contact. Suspecting that it could also be a trap, he would like backup nearby or at least an escape route ready for whomever does the talking.
If everything's on the up-and-up, the contact will likely lead us to a different location, as it is highly doubtful that the conversation would take place in the open. It might be better to have the party together at that point given that there would be strength in numbers, particularly if there's a chance we'd be separated and cut off.
Zangua does not see anything wrong with Mordred's suggestion of misdirecting the Six-Pointed Crown and trailing them. He would suggest an alternate plan B of playing along with the SPC to determine the nature of their involvement, then capturing or subduing at least one of them for interrogation.
This is all an advisory, of course. Zangua's acting on the available information and otherwise lack of apparent direction in what to do next. If we think that we'll have better success searching along the river for Zora herself, Zangua is more than happy to tag along for that.
