Vezurz Flare traveled along with the other most recent owners of the The Conventide Arcanum; Cormin Cherryseeker, Hulo and Vezurz himself.
They found it ~100 years ago, and only had it for about 2 months before getting rid of it in order to avoid being relentlessly pursued by those who wanted the Arcanum for themselves. When they hid it, Hulo and Cormin kept a few pages, and we have yet to meet Vezurz, meaning we don't know for sure if he kept any pages.