Edwin's Documents

Edwin's Documents are a quest item which can be received from the trader Marcus during the stronghold quest Find Proof of Mae'Var's Treachery. You can kill the man or pay the man to receive the documents. Beyond bringing them to Edwin, there is no other purpose of this item in the games of Baldur's Gate II: Shadows of Amn and Baldur's Gate II: Enhanced Edition.

In-game description
"These documents were obtained from a merchant called Marcus at the request of Edwin. Edwin has made it clear that the contents are none of your business."