Teenager Alex Batty had been missing for six agonising years when he was found wandering along a dark road in a remote corner of the French Pyrenees.

That moment in December 2023 should have marked the final chapter in an extraordinary story, which began when his conspiracy theorist mother and grandfather snatched him as an 11-year-old from the care of his loving grandmother, who was his legal guardian.

Instead, it triggered an avalanche of questions which, to this day, have been left without satisfactory answers.

How did Melanie and David Batty manage to keep Alex for so long despite widely publicised Interpol appeals for his return?

How did the teen finally escape his mother and grandfather? Most pressing of all, where on earth are the fugitive pair now?

While the trailer for a new BBC documentary out this week promises that Alex 'reveals all about his abduction and life on the run', the Daily Mail, which has spent the past two and a half years investigating this gripping saga, has discovered that - as ever - there is more to it than meets the eye.

This week we spoke to those who helped the trio as they flitted between alternative 'off-grid' communities in France and Spain - as well as to a relative back in the UK who told us that she was 'disgusted' that some of the individuals who crossed paths with Melanie and David didn't report them to the police.

Had they done so, she said, Alex might have been returned to his grandmother - and school - years earlier.

Equally shocking, however, are those who told us they did contact the French authorities but claim they were brushed aside.

Speaking to the Daily Mail this week the owner of a guesthouse in the Aude region near Toulouse, where Alex and his grandfather lived and worked on and off over nearly two years, said he alerted French authorities when he saw the boy's photograph on the TV news.

'They were not interested,' said Fred Hambye. 'They seemed to know all about him already. They did not even take a statement from me.'

Melanie and David have never faced criminal charges for disappearing with Alex. Last year, Greater Manchester Police announced that an investigation had been dropped because Alex and his family did not support it and there was 'no realistic chance of prosecution'.

They said: 'The right thing to do is bring closure to this chapter of Alex and his family's lives, particularly as this is the outcome they wished for.'

Now back in Oldham where, in January this year, he became father to a daughter Alex, now aged 20, has admitted lying to police in the aftermath of his so-called 'escape', for fear of getting his mother and grandfather into trouble.

He says at the beginning of the BBC Three documentary, Kidnapped By My Mum: 'I don't like lying but back then, it was like, "I'll do whatever I need to protect my mum and granddad."

Alex's ordeal began back in September 2017 when Melanie and her father, who shared her twisted anti-establishment beliefs - for example, that all forms of government are illegitimate - took him for a two-week holiday to Marbella, Spain.

At the time, Alex's legal guardian was Melanie's mother Susan Caruana - who had been caring for him for years at her home in Oldham after becoming concerned that her daughter was not providing the best home life for the boy.

Previously, Melanie had sold all her belongings to live in Morocco with Alex, returning to Britain six months later when they ran out of money.

To this day, the 71-year-old struggles to explain why she agreed to let them take Alex abroad.

'It's like they put a spell on me,' she tells the documentary. 'It's like they made me say "yes he can go".'

She realised her mistake when the 37-year-old Melanie sent her a chilling video from Spain which made clear that Alex wouldn't be returning.

Still only 11, Alex is seen reading from a script, saying in a childish voice: 'Stealing me from your own daughter is soulless. If you are not selfish and want the best for me then do not get anybody to look for us.'

On the run, Melanie changed her name to Rose while David became Peter and Alex was introduced to strangers as Zac.

In the documentary, Alex says that at times he lived in a tent after his mother threw him out of the heated caravan where she spent hours online researching conspiracy theories and giving 'therapeutic massages' to her devoted disciples at a commune called 'Garden of Eden' set up on an abandoned campsite.

Melanie refused to allow her son to attend school, forcing him instead to carry out paid manual labour with her father to support her while she carried on with her 'spiritual work'. Sometimes Alex ate just one meal a day. By his own account: 'There were a lot of very, very bad days.'

Among the handful of individuals who tried to help him were Belgian couple Fred Hambye and his wife Ingrid, who met Alex in late 2021 and were tearfully reunited with him last December when he visited them while filming the documentary.

Speaking to us from his home in the foothills of the Pyrenees this week Fred gave a remarkable insight into the strange dynamics between Melanie, 45, and her 67-year-old father, a recovering alcoholic who, after embarking on the Alcoholics Anonymous '12-Step' programme, devoted his life to spiritual regrowth and was in thrall to his daughter.

While Melanie remained in her 'luxury trailer' which she shared with her French boyfriend, David and Alex were given food and lodgings with Fred and Ingrid in return for a couple of hours' work each day.

Referring to the pair by their aliases, Rose and Peter, Fred said: 'Rose is a smart woman. She decided to live off grid while remaining very dependent on money. She made her son and father provide for her.

'She likes nice clothes and a lifestyle and she surrounds herself with people who will do things for her. She was busy on her computer creating her philosophy and exposing the so-called Deep State.

'Her father, who we knew as Peter, accepted this role. Rose blamed him for the bad childhood she had because he left the home when she was young.'

The Hambyes reached out to David and Alex after seeing the 'terrible conditions' they were living in on a nearby campsite in the winter.

'Zac would stay with his mother from time to time but would always come back here,' said Fred.

He said they became like 'foster parents' to 'shy and nervous' Alex.

It was after Alex asked for a notebook because he wanted to teach himself online that Ingrid took him to visit a computer college in a nearby town which provided student accommodation.

But while Alex passed the required entrance tests, he was unable to register because he had no proof of his identity.

'We did our best for Zac,' said Fred. 'We provided safety and security.'

Others who crossed paths with the Batty family, however, were more sympathetic to Alex's mother.

British expat Trixie Taylor provided food and accommodation to the three for around two years in return for help around her village home south of Valencia in Spain soon after Alex's 'disappearance'.

When the Daily Mail spoke to her this week, she said she only knew he was a missing child after her daughter saw news reports of Alex's return to the UK and recognised photographs of the trio.

'She said he was his mother and that's all I needed to know,' she said. 'We had no idea of what had happened to him. They had a normal mother-son relationship. I was entirely happy with them.'

'He was a very happy child,' added Trixie, who describes her home as a place of healing, community and love. 'He was living the life of Riley here... He was always full of conversation and everybody loved him. It was just joy.'

Incredibly, Melanie briefly messaged her last week via social media before deleting the account she used. The message made clear that she has seen the BBC Three documentary. In her message to Trixie, she claimed a lot of it wasn't right.

Defending herself against claims by Alex that she made him sleep in a tent, she told Trixie that it had only been two weeks and that it had been Alex's choice.

'She said it was his own choice because he'd done wrong,' said Trixie. 'And he was punishing himself.'

She added: 'I'm not defending her I'm just saying that there's always two sides to a story.'

Another Brit, 63-year-old Susie Harrison, who met Melanie in a local market in 2021, told the Daily Mail this week: 'She was a mother, instinctually a powerful connection, and he had been taken away from her by the granny and the system because she wasn't living by the norm and society has minimal tolerance for this.

'I understand her wanting to be with her child and doing whatever she had to, not to lose him again. I do think she loved him and cared for him.'

But Alex's great aunt Maureen Batty - his grandfather's sister-in-law - is left furious by such attitudes.

'I think it's disgusting how people in Spain and France didn't report Alex's situation to the authorities and how they turned a blind eye,' the 75-year-old told the Daily Mail. 'His situation was just dismissed.'

She added: 'I'm so glad Alex had the sense to come home. He's young but I hope everything works out for him.'

As well as Fred Hambye, those who did alert the authorities included the adult daughter of a campsite owner in the French Pyrenees who met Alex when he was 15 and sleeping in a tent.

The woman contacted French social services but tells Alex on the documentary: 'They told me that you were a foreigner and that [as] I did not have your true identity, they couldn't do anything.'

Staff at the computer college also alerted police after Alex told them his real name and they looked him up online.

But while two police officers arrived at the house where he was staying, pretending to look for a stolen car, they went away, apparently after deciding there was no cause for alarm.

It was soon after that, in late 2023, amid increasingly fierce rows with Melanie, that Alex claims he set off on foot in the middle of the night.

After deciding to hitchhike, he says he was picked up by a delivery driver who heard his story and drove him to police in Toulouse.

Fred Hambye, however, believes that Melanie and David Batty always knew of Alex's plan to return to the UK. He claims that 'Zac' went to meet his mother in a cafe in the nearby town of Chalabre in the hours before he was 'discovered'.

The owner of Chalabre's Cafe des Sports also recalls seeing Melanie, David and Alex meeting up there at this time and 'talking intently'.

Initially, Alex told both French and British detectives that his grandfather had died and that his mother had gone to Finland to see the Northern Lights.

Even now, says his great aunt Maureen - 'it's obvious that he's frightened of getting David and Melanie into any trouble'.

It is clear, too, from the documentary that Alex is still conflicted about his mother, insisting one minute that 'she thought she was doing what was best for me', then condemning her for making him work while refusing to do so herself.

'My relationship with my mum, it's such a complicated thing,' he says. 'I'm annoyed at what she did, the experiences I missed out on and my lack of education, but speaking to all these people about my mum opened up my eyes to why she did what she did.'

By the time he returned to the UK he was just months away from turning 18. As his grandmother Susan puts it: 'All those years, we're never going to get them back. Not just for me but for Alex.'

He has since passed maths and English GCSEs and is said to be looking for work.

As for Melanie and David, Maureen Batty says the family hasn't heard from either of them and they could be 'anywhere in the world'.

Several sources, however, have told the Daily Mail that they are in Spain and have sought refuge among the alternative communities in the remote Alpujarras region of Andalusia.

Perhaps the biggest twist of all is that Alex actually has his mother's mobile number - no one knows whether this is a number she has always had or if he got it by other means - and says that, one day, he hopes to visit her.

At the end of the documentary, he is seen reading from a text he has sent her.

Given what she put him through - and the six-year international police hunt his disappearance sparked - some will find it hard to comprehend the words he wrote to her.

'I know how much you care about me and I know all you ever wanted to do was to protect me. I love both of you.'

According to the BBC, Melanie declined to respond to any of the allegations in the documentary, saying she plans to release her own story with her own version of events.

She would do well to heed the words of her son: 'For me it's not a story. For me, it's my life.'