Thief in the House of Learning is a side quest located in the Orzammar Shaperate.
Talking to Shaper Assistant Milldrate triggers this quest. He will mention that somebody has stolen a rare tome from the Shaperate, and that he believes it was a bald man from Dust Town. He also claims that it was the first time that someone dared to steal from the Shaperate.
- Head to Dust Town and find Shady Corebit. He will initiate combat as soon as you talk to him.
- Once you have killed him, take the Proving Receipt off his body. It informs you that somebody at the Proving Grounds has the tome.
- Go to Orzammar Commons and continue across the bridge to the Proving Grounds.
- In the North Wing of Orzammar Proving, talk to Fixer Gredin. He will immediately attack you. The North Wing will be accessible only after talking to Dulin Forender to receive the quest A Lord's Trust: The First Task or after completing the quest A Prince's Favor: The First Task. On his body, you will find the book, A Volume of Shaper History.
- Finally, head back to Milldrate in the Shaperate to return the book, or alternatively, you can sell the book to the fence Jertrin standing against the wall near Gredin for 2 30 . You must sell the book to Jertrin immediately once you initiate a conversation with him if that is your plan. Once you exit the conversation, he will no longer speak with you even if you still have the book.
- 2 30 if you decide to sell the book to Jertrin and no known consequence occurs.
- If not, Milldrate will give you his thanks but nothing more (no money, no experience points).