I'm now showing as doing the Firefly Whistle quest, but can't complete it. Here's what happened:
I wasn't keeping an eye on my health, and died. Rather than just squishing grapes, my Pet Rock familiar suggested I check out scenic downtown Naraka a little, and grab some Wine of the Dead while I was there. I'll try just about anything once, so I went "Sure!". Wending my way through Naraka, I come upon some Fireflies for the very first time, in Dhuma Maya. At that, my Pet Rock cajoles me into doing a sidequest for a Firefly Whistle. Alright, cool! He teleports me to some funky futuristic Firefly lab - or at least, I think that's what it's probably like. Not sure, because the moment it loads up, the game notices that I'm still dead, and teleports me straight back to Hell again. Even better, once I land back in Hell my Pet Rock goes, "What, are you still here? Let's see if we can get you back where you belong." And he teleports me not to the firefly whistle lab, but to the location I initially died in. Back I come, and the moment I do the game notices again that, ah! I'm still dead, and belong in Naraka. Deposits me right back there again.
My Quest Log now shows that I'm in the middle of my Firefly Whistle quest, but I'm not in that location anymore. And my Pet Rock won't teleport me back to it because he thinks I'm already there.
Haaalp? =)
(On the plus side, not only have I been to Hell and back - and got the badge to prove it - I can honestly state that I've been on a round-trip, whistle-stop tour of the place!)