A vicious pedophile gang wearing devil masks locked children in an oven and a fridge in a hellish house of horrors, where they were made to eat dog food and sexually abused.
The children were so horribly abused that a judge described it as 'extraordinary depravity'.
Sickening images from inside the lair show mountains of rubbish piling up in filthy rooms where young victims were tortured.
A photo taken through a small window chillingly reveals a child-sized green plastic chair sitting among piles and piles of rubbish.
The outside of the dingy flat in Glasgow, which MailOnline is not showing for legal reasons, looks like a run-down apartment block.
But inside, the abuse was so vicious that the children terrifyingly nicknamed it the “Beastie House.”
Images through corrugated iron show a green plastic highchair and toys in one of the rooms, while in another room a sofa is wrapped in clear plastic with a Police Scotland sticker on it.
It is in this flat where two boys and two girls were 'violently and sexually' abused several times by members of the ring over a period of seven years
Five men and three women were convicted at the High Court in Glasgow of horrific crimes against four children under the age of 13. Pictured: Lesley Williams and Paul Brannan
In the filthy city flat, which doubled as a drug den, the seven adults held 'rape nights' when the children were abused, taking Class A drugs and forcing the children to also consume dog food, drugs and alcohol.
The 'beast house', as it was dubbed by one of the young victims, was the scene of horrors in which three young children, all under the age of thirteen, were violently and sexually abused over a period of more than seven years.
One of the victims, a girl, was raped in the gloomy house when she was still young enough to wear a diaper. She knew it as the 'dark and scary beast house', so named because she had previously been locked there in a closet full of spiders and beetles.
Ahead of the gang's sentencing on Tuesday, a judge warned them that they had been convicted of crimes of 'extraordinary depravity' and that they all faced a 'very significant prison sentence'.
In addition to 'rape nights', the grim flat also hosted 'dance and sex nights' and 'dog murders', all without the neighbors suspecting anything was going on.
In addition to being raped, the youngest girl was locked in an oven, a microwave and locked in a freezer when members of the gang tried to kill her.
She was also chased by people wearing devil masks during the abuse she suffered between 2015 and 2019.
The girl told the court during the trial last year: “It's not nice when people laugh at you when you're in pain.”
The depraved gang even had one of the children dress up and 'dance' before raping him.
The boy told police how all members of the gang would come to the property 'at the same time' before hitting and hitting him and the two girls with pans.
He recalled having to drink alcohol and said the abuse in the flat was sometimes captured on video.
Through the dirty window in the filthy den a Police Scotland sticker can be seen on the furniture
Two boys and two girls were 'violently and sexually' abused several times by members of the ring between 2012 and 2019. Pictured: Iain Owens (left) and John Clark (right)
The pedophile gang caused the children to use drugs and alcohol. They also used Class A drugs in front of them. Pictured: Elaine Lannery
Scott Forbes, 50, (pictured) was found guilty of raping a girl
Barry Watson, 47, was also found guilty of raping two girls. He was taken into custody
During a horrific attack on one of the girls, the vile group cheered while others filmed the abuse and exchanged money for what happened.
On another occasion, one of the girls was restrained and abused in a disgusting room by members of the ring until she was injured and unconscious – again while filming was taking place. One of the gang members received a payment after the attack.
Seven men and four women were ultimately tried, which is the largest number of suspects to appear before the courts together in recent Scottish legal history.
In addition to the sickening sexual abuse, the gang rolled a wheelchair over the legs of one of the girls and placed a plastic bag over her head.
The gang was also accused of forcing the children to participate in witchcraft in the flat, but these charges were dropped at trial.
It was claimed that they performed 'spells' on the children, convincing them that they had been turned into various animals and that they had used Ouija boards.
The gang killed dogs that had been cut and stabbed to death, and the boy said he once had to kill a parakeet with a knife.
The boy said he was once immersed in a bath full of blood at the flat in Glasgow.
Seven of the eleven were found guilty of sexual abuse, including rape, and four of attempted murder. Another woman was found guilty of assault.
Three people were acquitted. The ruling will take place at the Supreme Court on January 4.
Iain Owens, 45, was convicted of 18 charges including the rape of the three children, the attempted murder of one during which she was locked in a microwave and other kitchen appliances.
The unemployed addict was also guilty of other sexual offenses and class A drug supply.
Elaine Lannery, 39, was convicted of raping the children among the 12 charges she was charged with.
Lesley Williams, 42, was convicted of five charges, including the rape of two girls.
Paul Brannan, 40, pleaded guilty to seven charges, which also involved the rape of all three sex abuse victims.
Scott Forbes, 50, Barry Watson and John Clark, both 47, were further sentenced.
Marianne Gallagher was found guilty of assault.
The gang has been warned they could face life in prison.