|Tomb Raider Underworld|
|Section||Arctic Sea Section|
|Secrets||2 treasures, 1 relic|
|Helheim||Yggdrasil||Out of Time|
- Yggdrasil - The World Tree and binding element of all nine worlds of the Norse universe. Supposedly Helheim was situated under the roots of Yggdrasil. There is another myth that a great serpent, Níðhöggr, gnaws at the roots of Yggdrasil. Possibly this is another manifestation of the Midgard Serpent, which supports the theory that this site houses something monstrously world-threatening. 
- Find a path to the other side of the large Eitr filled room.
- Together using Odins Ritual and the power of Mjolnir Lara and Natla open the seals of Helheim, Here Lara finds her Mother only to find she has become a Thrall. Overcome with shock Lara shoots her into the eitr below, Natla further taunts Lara that she killed Laras Father when he betrayed her in Thailand, Lara is nearly killed by her Doppelganger but is saved by Amanda who holds off a pack of Yeti Thralls whilst Lara goes after Natla.
This level holds the last two treasures as well as the relic which is found behind an Eitr-fall which can be shut off temporarily by activating four symbols. This is probably the most difficult relic to get in Tomb Raider Underworld, as you have to master pressing all symbols without falling into the Eitr and beating the time run.
Lara can find five Health Packs in this level.
Traps & Obstacles
Typical Scenery of the Level
- Tomb Raider Underworld, Journal Entry "YGGDRASIL"