We have interviews from the Creator where he implies that it can be read. Such as here:
https://www.gamasutra.com/blogs/John...mas_Biskup.php
If you try to read the scroll, you get this result:
The direction of research that interests me most at the moment is the Merchant Guild. I find it difficult to believe that such a special place offers nothing except an opportunity to rob it. Perhaps the ancient gray wyrm offers a quest under the condition that you are high level and have never pickpocketed, never became head of the thieves guild and never robbed a shop? Those would be prerequisites that you break without thinking in nearly every game.