Michelham Priory, set on a medieval moated island, was founded as The Priory of the Holy Trinity in 1229 by Gilbert d'Aquila. In 1388 the threat of French raids led Prior Leem to surround the Priory and its grounds with a moat and built a gatehouse. The Priory was dissolved in 1537 and the church and the east cloister range were pulled down for their building materials. In 1896 the Priory was bought by James Eglington Gwynne who set about restoring the medieval buildings. After 1924 the well-known conservationist architect Walter Godfry carried out further restoration and in 1959 the Priory was given to the Sussex Archaeological Society. Michelham Priory is surrounded by tranquil gardens with the moat providing beautiful reflections. There is a kitchen garden, a cloister garden, fine old trees and an orchard. The psychic garden is particularly intriguing where the visitor can walk between the fragrant plants and read the fascinating labels. Paranormal activity at the Priory include the visitation of a young girl dressed in a tattered dress with ribbon in her hair. Also a maid has been seen and a monk has been heard, together with the smell of incense wafting down a corridor. Strange lights have been captured in a Priest hole, the sounds of a phantom harpsichord have been heard, strange shadows have been seen moving throughout the buidling and doors have been seen opening by themselves.

Activity at Michelham seemed to start as soon as the cameras were turned on, as only minutes after filming David Wells' walk around Stewart experienced a pain in his back. Although there were no noticeable marks it appeared he believed he had experienced something out of the ordinary. Only minutes later as the crew entered the Kitchen Stewart leaped forward as if he had been struck in the back, this time showing signs of more serious pain. The crew lifted his shirt to reveal a deep scratch down the centre of his back which had drawn blood. At face value this appeared to be a genuinely remarkable paranormal encounter. As the crew moved to the upper floors it became clear that some of the team could hear what sounded like music coming from downstairs where a harpsichord is on display, believing that maybe someone or something was playing the instrument. Arriving downstairs all was quiet and as the object is on display behind ropes it was felt that this could not have been any of the crew. After Ciaran had set up a motion sensor on the keys and left a camera and dictaphone to record they resumed the walk around. During the vigils however the crew again heard music coming from this room and rushed to check the equipment - unfortunately it had recorded nothing, while the motion sensor had not been triggered. What they failed to consider is the fact that the room includes a clock which has musical chimes, and maybe all they had heard was the clock striking the hour. Additional activity of note included an instance with Karl and Stewart where knocking and sounds like glass being clinked or thrown were picked up, while Richard and Jon suggested hearing a sound similar to a coin falling on a wooden ramp 2 floors down only to discover a coin on the floor at the base of the ramp. The most notable activity occurred with Stewart and Karl in one of the upper rooms where a chair was captured on film moving across the floor seemingly by itself - unfortunately the footage did not clearly show the base of the chair legs, and can therefore not fully discount the possibility of fraud, but nevertheless this remained some of the most enthralling footage the Most Haunted crew have captured to date.