Quest Name: A Whispering Door
Reward: Ebony Blade
Location: Dragonsreach in Whiterun
Level Requirement: 20
The blade is unique. It is two-handed and has an absorb health enchantment that is unlimited. The enchantment is up gradable through killing followers, which increases how much health is absorbed. The blade also has another effect where it calms the follower when you strike them so they do not attack you.