dark as pitch

For the Daily Prompt: ghoulish.

I took this in 2012 in the Ape Caves at Mount St. Helen’s. The Ape Cave is a lava tube. When Mount St. Helen’s erupted, lava flowed hot. As the outside cools, the inside continues to flow, leaving a cave. The cave is 2.4 miles long and we are instructed to bring 2 or three light sources and back up batteries: because if lights are out, it is truly black as pitch inside. We all turned our lights out together, and stood in the darkness.