In Red River Canyon, the party is set upon by a cult in the service of Grelgaum, the God of Slaughter. Overwhelmed in the night, the characters are imprisoned in a cave network, to be fed to the hydra Eckthia the next day in honor of Grelgaum. How players deal with these events is up to them. Likely scenarios include them trying to break free from their prison before time is up, or waiting until the cult members try to feed them to Eckthia to turn the tables on their captors.