Boethiah's Shrine

The Shrine of Boethia is located in the mountains south/southeast of Cheydinhal.

Boethia
Prerequisites: Character Level 20 Offering: Daedra Heart Reward: Goldbrand (Katana, 22 fire damage on strike)

Location
Head south of Vaermina's shrine at Lake Poppad until you are parallel to the fork in the nearby river. At that point, head straight east into the Valus Mountains. ( might want to consider rock climbing if you know what I mean ;) )

Walkthrough
After talking for a while Boethia opens a portal to an Oblivion Plane, for you to compete in the "Battle of Ten Bloods". In the "Battle of Ten Bloods" you must defeat each of Boethias (to-be) champions. In the Oblivion Plane you will find massive gates one after another. Behind each of these gates is a level-appropriate hostile NPC. You must defeat each NPC in turn to open the next gate. Before each NPC appears Boathia will give you some information on each of them.

You can rest an hour between fights to recover health and magicka, as long as you don't get close enough to the next gate to trigger Boethia's little pre-battle introduction. The next combatant in the trial does not seem to be generated until that point.

After you have defeated them all, Boethia will open another portal, for you to return to his shrine. Upon activating the portal you have the option of either going through or to go back to loot the bodies of the slain Champions.

You will want to clear as much inventory space as you can before entering the trials, your opponents will have a lot of nice gear, and veritable boatloads of healing potions. For this reason, you also want to avoid pushing them into the lava. It will kill them, and count as a win, but makes it hard to get the goodies.

Upon succesfully returning and thus completing "The Battle of Ten Bloods" you will receive a gift from Boethia, the artifact Goldbrand.

Bugs
Though most gates didn't open, I managed to run though the lava and around each gate, water walking helped.
 * In some 360 versions of the game you will not be able to progress beyond the first enemy.