Police found a human teeth in the top of the soil in a secret grave hidden in a churchyard
The unmarked gravel-topped burial site sits just yards from a disused flint church and police have found human teeth in the top of the soil.
Despite the macabre discovery officers are unsure what lies in the shadow of the Grade I listed St James' Church, in leafy Stanstead Abbotts, Hertfordshire.
The shocked custodian of the 12th Century building found the neat grave on Monday and raised the alarm.
It is unknown when it it was dug but a top cop believes it has only been there for roughly one year.
Senior officers and detectives were at the scene with a blue forensic tent covering the bizarre burial site.
Evidence bags were strewn on the ground and scene guards stopped onlookers from getting too close.
Senior officers and detectives were at the scene with a blue forensic tent covering the burial site
East Herts Chief Inspector Gerry McDonald speaking at the scene said: "People have noticed a couple who have been tending that spot more recently.
We are appealing to anyone who has seen someone visit the mystery grave
"I am appealing for anyone who knows that couple or the couple themselves to help us resolve this matter and give us an explanation.
"It has been 60 or 70 years since someone was buried in that area.
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"This is a very old grave yard and if you dig you will find items of bone or teeth but that will be the normal composite of such an area.
The church will remain closed while police are on the case
"Until we finish our investigation and until that couple comes forward we will continue exploring every avenue be it sinister or normal."
The spired building is only used four times a year as it sits on the outskirt of the peaceful village and has been superseded by more modern places of worship.
Detective Inspector Anna Borella said: "The church is only used around four times a year, but we know that people regularly visit the graveyard.
"We are appealing to anyone who has seen someone visit the mystery grave or who has information which may help us identify it, to contact us.
"The grave is situated close to the church and there are no graves directly next to it, so anyone visiting may stand out."
The church is looked after by The Churches Conservation Trust who said the building will remain closed while cops are on the case.
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A spokeswoman said: "We are aware of the recent discovery in the churchyard of St James' Church in Stanstead Abbotts.
"While the churchyard at St James is not in our ownership, we are working with police to provide assistance.
"The church will remain closed during the police investigation."
Locals have been left stunned by the discovery with Mass Hosseini, 57, landlord of The Red Lion saying: "It's very mysterious.
"It reminds me of Midsomer Murders or Father Brown.
"I've been here 12 years and I haven't heard of anything like this.
"It's really interesting."