It starts out with the classic scene of zombie hordes unleashed on the unsuspecting town. The party has to stop them from eating the commoners. I absolutely love that type of zombie scene and wish it showed up more often in modules. The party then has to travel to an ancient tomb created by holy knights to imprison a great evil presence. Seems like it might fall into being a dungeon crawl but there are lots of NPC encounters and characters amply mixed throughout.
My favorite encounter is with the mage transformed into a worg. A voice calls out from behind a tree stating "Please do not attack me, my appearance may disturb you" it just sparks the imagination like no other way.
Another of my favorites is a severed undead head in a magic cage that enables the head to speak. It is a dwarf who figured out all the traps in the tomb. I think it's awesome that the party has a good chance to carry around an angry dwarf head that knows all the secrets of the dungeon but might be unwilling to help.
The main villain has an ability to be able to see and speak through all of his minions. This allows for a constant dialogue of threats, taunts between the villain and the party. I absolutely love this, I haven't seen any other adventures where you get to dialog with the main villain the entire time