Jiub's Opus (Page 9) is a quest item in Skyrim: Dawnguard. It is needed to complete Impatience of a Saint
Location[edit]
To find Jiubs Opus page #9, enter a maze like building west of where Valerica is, and find teleporter.[1] This will take you to the roof where you will find the page near a chest.
Visual Help/Screenshots[edit]
This is how entrance to maze building looks like: