quest available in The Elder Scrolls Online.The Mystery of Razak is a
I discovered a battered Dwarven construct that seems to have killed its Imperial caretaker. The Imperial's notes imply that they are searching for something within the Dwemer ruin at Razak's Wheel.
The key order at the end is: Aurbis Key, Mundus Key, Aetherius Key.
You get the Razak's Opus pet, which is a loyal steam powered Dwarven Spider, fueled by magicka from a soul gem that will last for eras, as well as 328 .