Secrets of the Betrayer

Publisher's blurb:

You want to run Vecna: Eve of Ruin but you have problems with the way the campaign is written? Worry not, because Secrets of the Betrayer has the fix!

»The Cult of Vecna is kidnapping nobles in Neverwinter, and now, Kas the Betrayer is hatching evil plans in his Domain of Dread, Tovag. The characters must cross the war-torn lands of Tovag and uncover the secrets hidden inside Kas’s unholy fortress.«

This adventure is written for 10th-level characters, and fits right in between chapter 1 and 2 of Vecna: Eve of Ruin. Of course, you can also run it as a standalone adventure and throw your players into the exciting horrors of Tovag!