Marla, an earnest young priest of Pelor at the Great Church in the city of Cliffport a few days travel to the east, has commissioned you for an investigation at the town of Winterhaven. Marla has been studying the history and activity of various demon and death cults. According to her research, witnesses saw a small group of death cultists traveling toward Winterhaven about a year ago. She has since learned that the head of this group is a dangerous and twisted priest named Kalarel. She fears that Kalarel has set up a secret cult in the area and is conducting unholy ceremonies. She has hired you to travel to Winterhaven, determine if there is any death cult activity in the area, and, if so, to stamp it out. She has offered to pay you 250 gp (for the group) for bringing back proof that the cult has been destroyed and its plans disrupted.Realms, both wondrous and dire, border the world. One such realm is the Shadowfell. Although not inherently evil, the Shadowfell is fraught with dangers, and the barrier between worlds can be thin. Sometimes the darkness breaks into the light.
Nearly two hundred years ago, a cult of the demon prince Orcus purposely created such a gap, connecting one of Orcus's unholy Shadowfell sites to the world. Skeletons, zombies, and creatures most foul flooded through the rift into the light of day. The empire of Nerath dispatched legionnaires to eliminate the threat. The empire's soldiers destroyed the undead, sealed the opening, and built a keep to watch over the location and contain the threat. This is the site known as the Keep on the Shadowfell.
Decades of peace followed, and the village of Winterhaven arose within sight of the keep. Eventually, the great fort fell into ruins and its grand purpose was forgotten. Today, it is seen as a harmless tumble of stone and wood.