Marc Brueggemann and Christopher Herbert, members of Ghostbusters International, completed a paranormal investigation of Gettysburg, Pennsylvania. Utilizing modern technology, they attempted to capture evidence of the supernatural. By the end of the hunt, they had captured one disembodied voice on an audio recorder and one unexplainable photo.

&bull For more information on Electromagnetic Field detection, visit http://www.the-atlantic-paranormal-society.com/articles/technical/emfintro.html

Brian Harnois is a member of TAPS (The Atlantic Paranormal Society). As a tech expert, he explains what EMF detectors do, which ones to use and how to use them.

&bull For more information on Electronic Voice Phenomenon, visit http://www.csicop.org/specialarticles/evp.html.

The Committee for Skeptical Inquiry is one of the oldest and most trusted paranormal investigation organizations in the world. Dr. James Alcock, a member, explains what EVPs are, how they are formed and how they might be explained.

&bull For video of ghosts at the Triangular Field, visit http://www.youtube.com/watch?v=h-orDWIkr-M

The tree line at the Triangular Field is seen late in the summer, at dusk. Figures move about just within the forest. All witnesses asserted no one was in the forest at the time the video was shot.