Mark L. Cowden is the audio-visual technician who recorded what is believed to be the first ever documented case of a live, two-way conversation with the spirit world. In early 2010, at an apparently haunted hotel in Northern Ireland, Mark was part of a small team of people who were filming a television documentary series about ghost stories when something incredible happened. While a medium and a psychic investigator sat on a bed in the next room and attempted to contact the spirit of a ghost in the hotel, Mark was able to record not only the medium's side of the conversation-and her report of the responses she was receiving from the spirit-but the spirit's replies directly as well! With camera's rolling, an independent television crew documented the whole process. Not only is this believed to be the first time anybody has ever managed to record a whole conversation between this world and the next, it was also a first for television. SPIRIT VOICES documents Mark's work in the field of paranormal forensics and details the technology and methods he developed to achieve such groundbreaking results.