Assault on Nightwyrm Fortress is the third part of a three-part series of adventures belonging to the 4th edition Dungeons & Dragons concept of Points of Light. The adventure, written by Bruce R. Cordell and Shawn Merwin, was published in March 2009 by Wizards of the Coast. The adventure is designed for character of levels 17-20 and the module code "P" stands for Paragon Tier. The adventure is largely set in the Shadowfell.
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Death is Forever
Local hero Jothan Ironspell has fallen in battle, and all attempts to raise him from the dead have failed. And he is not alone. Someone or something is stealing and devouring the spirits of the dead, in defiance of the Raven Queen. All signs point to the Shadowfell and an ancient fortress with a monstrous secret.
This adventure takes characters from 17th level to 20th level. It can be played as a standalone adventure or as the conclusion of a three-part series that begins with P1 King of the Trollhaunt Warrens™ and continues with P2 Demon Queen's Enclave™.”