Sacred Haven of Debauchery

One night, I was flying over a dark forest near the "Cthulhu" river, and suddenly I saw strange lights below, as if thousands of campfires were burning with a bright, even flame. I became curious about what was happening there, so I descended... about 30 meters above the ground, I saw many humanoid creatures (bipedal) singing strange songs. Listening closely, I realized that these were lines from an ancient, dark ritual. Suddenly, a sinister, commanding voice echoed from somewhere. It was the voice of a shaman, and it seemed he was summoning some creature from the depths of the dark realms. Suddenly, a scream rang out, and all these creatures turned their gaze towards me. The shaman shouted...