|Release date||7 January 2016 (Update)|
|Location||Arceuus House Library|
| He's come a very long way from home.|
Professor Gracklebone is a customer at the Arceuus House Library. He seeks certain texts within the library, and will ask the player to retrieve them. He will give players a book of arcane knowledge once a text is turned in, in addition to 1.5% favour.
He also features in a medium clue cipher, where he will hand the player a challenge scroll. The answer to his question is 9.