Secret Servant

is a power found in. Unlike other powers, it's not restricted to once a day use.

Acquisition
It is one of three possible powers gained from the quest "Black Book: Untold Legends".

Effect
"Summons a Dremora butler for 15 seconds to carry your excess items."

When activated, a Dremora Merchant appears and offers to carry any items for the Dragonborn much like a follower. His carry weight is capped at 148.

Usefulness
Can prove extremely useful if over encumbered and far away from any locations where items can be sold or stored.