E1 Death's Reach

Wicked forces conspire to usurp the power of the Raven Queen, god of death, by unraveling the foundations of reality. To prevent this cosmic coup, mighty heroes must survive an epic journey into the Shadowfell's timeless core, where all things find their end.

The beginning of the end of the original 4th edition adventure path (although ties are very light to the heroic and elite tier adventures). The PCs must first prove themselves worthy to act as the Raven Queen's agents. They will then be sent to Death's Reach, a graveyard and dumping ground from the Dawn's War. There, they must fight through the Black Star Host- powerful elemental beings, to prevent Orcus was resurrecting a primordial, Timesus the Black Star.

One notable encounter is a random encounter with the Worm of Ages. This huge worm has the ability to swallow and rules for moving creatures from its maw to its throat, gullet, and into the stomach.