Death's Rise is a a neutral quest hub for the Knights of the Ebon Blade. It is a platform carved into the side of the mountain southwest of Jotunheim and east of Onslaught Harbor in Icecrown. [20.3, 47.7] It can only be reached by flying mount without dying. If you are willing to die you can go to the point right above the location dodging or killing all the Mobs above and then working your way down to a point right above the Rise. Then take a death plunge down to the rise then release your spirit. Upon release you will be given a flying spirit mount and you are able to fly to your body and revive there. Then go to the flight master there and get the location.
It appears to be a part of Balargarde Fortress that the Ebon Blade have taken away from the Vrykul at Jotunheim; the corpses of the platform's former occupants still litter the ground. Lord-Commander Arete sends adventurers against the Scarlet Onslaught at Onslaught Harbor. Daily quests that reward Ebon Blade reputation are available from Setaal Darkmender, Uzo Deathcaller, and Aurochs Grimbane. Baron Sliver at the Shadow Vault starts the Death's Rise questline (*  ) by sending adventurers to talk to Lord-Commander Arete; there seems to be little love lost between the two knights.