Evil killer Ian Brady might have been creating a swastika with his victims' bodies, an expert claims.
Author Russell Edwards says the Moors murderer buried female remains on one side of the A635 and males on the other in the shape of the Nazi emblem.
It was unfinished but the "half of a zig-zag" was obviously significant to Brady who held a fascination for Adolf Hitler, he added.
Mr Edwards has spent the last seven years researching the infamous killings, putting together a team of experts to find the final victim.
They then uncovered a skull believed to be that of Keith Bennett who was snatched 58 years ago, aged 12.
Detectives are now digging the area of land on Saddleworth Moor.
Mr Edwards told The Sun : “The significance of the road is it looks like part of the swastika.
“It is his version of a swastika although he never got to finish it.
“There is half a zig-zag in the road and I thought it was significant to him.”
Keith was last seen on June 16, 1964 and is the only victim of the Moors murders who has never been found.
Brady and girlfriend Myra Hindley killed five children between July 1963 and October 1965, in and around Manchester.
But at the time of their deaths - Brady in 2017 at age 79 and Hindley in 2002 at 60 - they had never revealed the location of Keith's body.
The couple watched films on Nazism, about which Brady had built up a library of books, and Hindley dyed her hair blonde to imitate an ideal Ayran woman.
Brady is said to have even used Hitler's speeches to learn German while imprisoned at Ashworth.
On Thursday night, forensic anthropologists were examining potential samples of body tissue taken from the area where Keith's remains are believed to have been unearthed.
Greater Manchester Police were initially contacted by a rep for Mr Edwards before he agreed to meet officers earlier this week.
GMP's Martin Bottomley said: "We are in the very early stages of assessing the information which has been brought to our attention but have made the decision to act on it in line with a normal response to a report of this kind.
"It is far too early to be certain whether human remains have been discovered and this is expected to take some time."
The statement added: "We have always said that GMP would act on any significant information which may lead to the recovery of Keith and reunite him with his family.
"Officers met with Mr Edwards yesterday evening (September 29) and he was able to locate a site of interest and provide us with further details of the work he has been carrying out.
"We are at the very early stages of assessing the evidence which he brought to our attention, but have taken the decision to excavate an area of land with a view to determining what lies there.
"It is far too early to be certain whether human remains have been uncovered, but out of respect for Alan Bennett, who we regularly maintain contact with, we have informed him of this potential development.
"Alan does not wish to be disturbed at this time and we would ask that his request for privacy is respected."
Forensic archaeologist Dawn Keen, who specialises in the study of human remains, remotely supervised the "grave cut", reports the Daily Mail.
She said: "I do believe there are human remains there. They [police] have got to look.
"From the photographs, I saw the teeth, I could see the canines, I could see the incisors, I could see the first molar.
"It is the left side of an upper jaw. There is no way that it is an animal."