Link to the Peacock Spirit
The Revelation Quill is one of several created by the followers of the Peacock Spirit in ancient Thassilon. It allows one to ask questions of the Peacock Spirit, though the answers are typically somewhat cryptic. When the question is asked, the Quill will write out the answer on its own accord. Additionally, when the Quill is put into an ink well, it can fill the well with ink (color is user’s choice).
This item was in the elven wizard Timixtarel’s possession. It is assumed he had it when he was killed, so it seems likely his killer now has the Quill. This, of course, is only true if the missing wizard is actually dead.