Victory in the Vale
Leader of the Cult, obsessed with opening the rift.
Kalarel was the mastermind behind everything that had gone awry in Winterhaven. He stirred up the kobolds, bullied the goblins and hobgoblins into his employ, and began the ritual that would unleash something horrible into the world… the gradual opening of the gigantic portal underneath the keep also flooded it and the surrounding countryside with necrotic taint, allowing him to raise a small force of skeletons and zombies to aid his armed followers.
The party dealt quickly with his closest servants, forcing him to fight a hopelessly one-sided battle against the five of them. As he lay slain, the rift closed, saving the Vale from horrors unknowable.