Athelhampton Hall dates back to the 15th century and has a long and varied history as a family home. Its main features are a great hall, with an oriel window, and a unique timbered roof. A new wing was built at the beginning of the 16th century.

Thomas Hardy painted a watercolour of the buildings and his father probably worked on the restoration of the roof in the Great Hall. This place has quite a complicated name history. In the Domesday Book of 1086, a building on that site appears as Pidele, one of several estates named from the River Piddle on which it stands.

From the mid-13th century, the name of an early owner Aethelhelm is added. Finally, from the end of the 13th century, the Pidele comes to be dropped, replaced by spellings like Athelhameston in 1303, Athellamston in 1327, and numerous other later variations like Addlemaston on Saxton's map of 1575.

Phenomena
Stories linking the family to a pet 'monkey' are also associated to paranormal activity in the building. It is believed that after a disastrous love affair a young girl committed suicide in one of the hall's secret rooms. On her way to the room it is rumoured that the monkey followed her, into the secret location, where it remained to die of starvation. Paranormal experiences in the building include apparitions of the monkey and scratching sounds from the secret room. The 'Gray Lady' is also reputed to haunt the Tudor Room, while spirits are said to re-enact a duel in the Great Chamber. An apparition of a hooded priest has also been reported.

Investigation
Derek connects with the spirit of a dead monkey, rumoured to haunt the property, which also seems to affect the owner's dog. Elsewhere the crew all hear a cot rocking, but nobody is in the bedroom. Orbs are also spotted in the vicinity. The crew split into two groups - when the boys venture into the passageway where the monkey died, Karl feels something breathing on his ear.