This quest unlocks the first door in the Ooze Pit dungeon. Just stand on the pressure plates to open further doors. The Prismatic Chest at the end of the dungeon drops one Prismatic Gelatinous Material per player along with the usual random gold item or gemstone. Be warned that opening the chest and clearing the spawn without picking up the items that come out will cause the game to force you back into an explorable area. However, if you fast travel to an outpost, the game should offer you the items from the chest as unclaimed, as if you had completed a mission with items left on the ground.