Several very different manuscripts exist in Iran and elsewhere.
These aren't just clever collectibles used to add color to the story; the manuscript exists in the game world.
However, their preliminary conclusion is that the Byzantine manuscript exists.
The fact that no manuscripts of Q exist today does not necessarily argue against its having existed.
Outlines or manuscripts for one or two more books may exist.
It is possible that some secret manuscripts existed before publication in the 12th century.
However, no known manuscript of the work exists, and it was first published only in 1869, in France.
The biggest problem is that no single comprehensive manuscript exists.
Possibly two other manuscripts existed but little is known about them.
The original manuscript of this work no longer exists.