Blood on the Ground

Humberto chanted, performing satanic rites, and killed a chicken while his followers watched. He drained its blood into a chalice, accidentally dribbled some on the ground, and felt vibrations underneath his feet.
      "It's working," he announced. Grinning widely, he poured more blood onto the sediment where the first had landed.
      But Humberto fled when the earth split open, forming a gaping maw which swallowed several satanists.
      Arms of dirt shot from the ground, tearing others apart, then merged, taking the shape of an enormous foot.
      "You will defile me no more," the earth boomed and the foot stomped Humberto flat.
      The end.