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Fancy living with the ghost of a shapeshifting nymph?

Here's the house boasting the remains of a 12th century castle in the garden – and it's haunted by a shapeshifting nymph with links to Merlin and King Arthur.

The home in Bala, north Wales, has the groundwork of a Norman castle, Castell Gronw, in the back garden and legend has it that it's the home of Blodeuwedd, a shapeshifting nymph who stalks the night as an owl.

The ancient castle, dating back to 1202, is steeped in medieval history and is the setting for a tragic tale in The Mabinogion - thought to be the earliest prose of literature in Britain.

(Image: Caters)

The iconic book is based on ancient and legendary Welsh folklore and it's even thought to be the earliest known writing of Merlin and King Arthur.

Owner Louise Davis, originally from Chester, said: "We knew there was a castle in the grounds when we bought the property.

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"We love the legend of Blodeuwedd and we've even got 300 small owls hidden around the property to remember the tale.

"The castle dates back to 1202 as a listed Motte and Bailey castle site built to guard the crossing of the River Dee.

"The mound gives us excellent views of Lake Bala and it's magical to light the chiminea at the top and watch the sun go down over the lake.

(Image: Caters)

"The fact that the castle remains are listed means we aren't allowed to dig into the mound in any way but we wouldn't want to.

"It's been a privilege to be the owners of these historic remains but it's time to move on."

The Castell Gronw is a tragic tale of love, deception and murder – concluding with the main female protagonist, Blodeuwedd, being turned into an owl and only being able to come out at night.