I don't know if using Polymorph had anything to do with it, but Pedro (English version name for the leader) should have dropped a sword and a letter when defeated. He should remain friendly (and unresponsive) until you have gotten the hint from Tingalf about the goods, after which he will start a cutscene conversation as you approach, and then turn aggressive.
Marcus-Tingalf-Trevor-QuestIf you defeated Pedro, but didn't get the letter, it can be replaced using the procedure in the topic below. The letter may have simply dropped so it was hidden behind a wall, or otherwise obscured; searching the area while hitting the Alt key and/or moving the mouse cursor methodically around may find it.
Lost Items - guide and directory of inventory filesWelcome to the forum.
