The Den, also known as the Eagle Hideout is a hidden cave found beneath the Taiga where the Rukiryaxe quest takes place.
It is a square-shaped area that contains many wooden barrels and crates, flaming torches, chairs, and crates which are used as a table for the members (Gusmanak, ZolarKeth, and Rukiryo).
The members are found sitting on the Fir/Pine Wood chairs, still and not interactable. At the back of ZolarKeth is a large, grey eagle.
The table contains plates and Sporks, for each member and one for the player as well. On top of the table is a square hole, which at the end of it, spawns the Rukiryaxe and slowly descends it when conditions are met. Beside the hole is a fluorescent lamp that is not lit up.