Others have already handled the question, but i thought I'd give it a shot anyway. First, talk to Sunbrand the ghost drake. He's marked on your map. Talk to him, and you'll get a quest that requires you to defeat 12 terrorwing enforcers. Once you do this quest, you'll have to defeat Avalanche. ( he drops the best myth blade by the way). After you accomplish this, talk to Sunbrand again and you'll have to defeat the giant homunculus ( he drops the best ice blade). Then talk to Sunbrand again and you'll get the soulsinger quest. Ivan soulsinger is a rank 8 death boss, and he has a wandering firesoul as his minion. That's all you need to do to get to him. i did this quest yesterday, and am still trying to get his sword. Good luck on getting it to everybody. Wolf Moondust, level 48 sorcerer. (As a footnote, the sword's exact name is Soulsinger's soulsword and the stats are: +1 power pip, and 5 copies of Super Dark blow, which deals 100 death damage).