hey, there's a glitch with the pirate party quest stage where you kill the invisible mobs and drop 'Lord pirate's key to chest' in front of the huge chest. I have had numerous pq's where the chest drops nothing, not sure if extremely unlucky for nothing to drop? but im pretty confident its glitched.
It is meant not to drop anything. When you unlock the pirate chest, you'll fight a harder boss. So in total there are 3 chests to be unlocked, and after unlocking all three, you'll spawn the hardest boss.
