Lost Valkygg

 It's a location in the exterior of Labyrinthian.

Location
The Lost Valkygg is inside the Labyrinthian which is south east of Morthal in the mountains. Upon entering this underground area, you follow a path that curves to the right. Eventually you are at a junction where ahead of you is a hole in the wall with a view into an inner chamber, and to the right, a short passageway with three floor activation buttons and a gate with three bars blocking your path.

To make things easier on yourself, you can dispense with the two Draugrs by shooting them through the window. Once that's done, you must solve the problem of the right passage way 3-floor-button gate. Standing on one button, removes one bar, but moving off a button, has the bar return to blocking your path. Drop three things from your inventory (eg. buckets, baskets) and move them to be on the buttons. Then proceed through, following the passageway until you end up in the chamber with the table and two Draugrs (who are likely dead from your earlier shots through the window). This location also features one of the toughest Draugr in the game and it is levelled aproximately 15 levels above the player. The Draugr in question is equipped with an Ebony Bow, Ebony Arrows and uses a Disarm Dragon Shout regardless of player level. One solution is to bring a companion and let them engage while the player engages with a bow or with magic whilst sneaking. Past this Draugr is a chest, which contains minor loot. Beyond this is a slanted room with another chest, containing much better loot. Also, there is a pit which the player may drop into. However, be warned as there is another Draugr wielding an Ebony Warhammer and using shouts in the same matter as the first. Low level players should be warned, as sneaking is almost impossible against him; bringing a follower to soak up damage is recommended.

Enemies

 * Draugr Deathlord, 2
 * Draugr

Loot

 * Scaled Armor
 * Dwarven Arrow
 * Gold
 * Lockpick
 * Magicka Potion
 * Elven Bow
 * Iron Armor
 * Ebony Bow
 * Ebony Warhammer
 * Kahvozein's Fang
 * Pickpocket Skill Book

Appearances

 * The Elder Scrolls V: Skyrim