Very hard boss, bring high level help, this boss doesn't like to drop the required item (a red bag on the floor) too often, so you may have to repeat this part a few times, be patient, keep your tank happy.
New quest: Kill the Knight Hector located in the new dungeon Ancient of Ruins to acquire the quest item then go back to Warrior Hector to complete the quest.
Congratulations!! you now can enter ROA. Now get a pimped Mercenary or VoidMage willing to bring you to Hector's Room and kill that boss so you can get the 'Bloody Paper' required. Or.... look for it at the Auction House, it's amazing the things you can find in there!!.