The medieval house in Upper Dicker, near Hailsham, dates from 1229 and is well-known for its paranormal activity, with reports of mysterious footsteps from empty rooms, doors opening on their own and shadowy figures disappearing through walls.
A ghost hunt date will take place on Saturday, 20 November for supernatural enthusiasts, where visitors will hear tales of monks, murder and treason – stories of those who lived and died in the house and uncover dark secrets from its 800-year history.
Ghost hunters will first hear from a paranormal expert on the most haunted spots in the building and then get the chance to try out their own experiments late into the night in groups, led by their own professional guide from Dark Encounters, who run paranormal investigations across the country.
Property Manager Lindsay Lawrence said:
"Michelham Priory is considered legendary by paranormal experts and is widely known as one of the most haunted places in Britain. We get emails daily from ghost hunter groups wanting to get in here.
"There's a multitude of ghost stories from inside these walls – people have reported seeing the spoons on the walls rattling and door handles shaking in our Tudor kitchen and hearing a strange woman"s voice whispering in their ear on our upper floors.
"The house has also featured in the popular TV series Most Haunted twice, including the show's pilot and its 100th episode."
Over Halloween itself, Michelham Priory & Gardens will host a weekend of fun activities for families.
Children can enjoy a magic show from the Wacky Wizard in the Elizabethan Great Barn and take part in Halloween-themed crafts, as well as a spooky trail in the gardens.
The Ghost Hunt at Michelham Priory will run from 8pm on Saturday 20 November until 2am, and tickets are £49. Tickets for these events are available at www.darkencounters.co.uk/events
The Halloween Weekend is included in standard admission prices and bookable online at sussexpast.co.uk.
Tickets start at £9.70 for an adult, £4.65 for a child or student, £8.80 for a senior, £25 for a family with two adults and up to four children, and £14.40 for a family with one adult.