It was nice to sit down and just mess around for a couple hours

An Indian explorer discovers three massive granite trenches deep in the jungles of the Amazon.  The distance between each trench is almost one mile, and the center point of each trench forms a perfect triangle.  The original purpose of the Three Trenches is currently unknown.  Are they entrances to an ancient underground tunnel system?  Were they part of a docking device for an enormous space ship?  The mystery remains.  However one thing is obvious upon visiting the Three Trenches: a spirit eternally dwells in each one of the sacred sites.  And in this composition, you will hear scattered communication from each of the three immortal souls...a warning…

BSTN