Norfolk - Detectives probing the unexplained death of a woman found on the Sandringham estate's pheasant potting range have been tipped the wink about another unexplained RIP.
It's said to be 'so astonishing' that ground penetrating radar may now be used to search the area for a 'gigantic suitcase' containing the remains of 1981 Epsom Derby winner Shergar.
The development follows an anonymous telephone tip-off claiming that retired stable hands at the Royal Stud on the Sandringham estate 'were in it up to their necks' in the wonder horse's disappearance.
Yesterday a raft of UK red tops reported on the proximity of the deceased woman's body to the Queen's horse breeding factory.
Officially Shergar is listed as one of the IRA's 'disappeared' following a brutal snatching from his Ballybollox, County Louse horsebox in February 1983.
Witnesses once claimed that Provos' machine gunned him down' after he went berserk in a horse transporter whisking him off to secret stud duties abroad.
Privately rumors have persisted that the record-breaking champ was successfully flown back to mainland Britain to refresh one disaster-struck equine owner's breeding genome.
Unfortunately - so the story goes - when the poor beast took one look at his new 'owner' he promptly had a fatal heart attack and dropped dead on the spot.
None of Shergar's progeny has live up to the hype of their illustrious sire.