Mariah Carey’s Sister Exposes Their Satanic Ritual Upbringing has learned exclusively the Grammy Award-winning singer’s mother, Patricia, led her daughters and other black-cloaked cult members in the creepy rites!

“At a very young age, both Mariah and her sister, Alison, were involved in the ceremonies and participated in them,” a family source dished.

Alison described the hair-raising services, saying one of her earliest memories is being taken to a huge “castle” in Long Island, New York.

“It was there that the satanic rituals, led by my mother, took place,” Alison, 56, spilled in a bombshell interview.

“I remember people wearing hooded cloaks, standing in a circle and chanting.

“There was also sexual activity and [animal] sacrifices, which the participants believed would please the deity they were there to worship.”

Mariah’s brother, Morgan, told Radar: “Mariah gave an interview in the beginning of her career where she mentioned Pat’s [Mariah’s mom] obsession with the occult, and how it embarrassed her growing up.”

Alison — who is HIV-positive, flat broke and living in a halfway house in Upstate New York — claimed she was expected to be more than a spectator at the sickening rituals.

“I was trained to run ‘The Group!’” she told Radar exclusively. “At first, as a small child, I would not understand what was happening — being forced to watch as a struggling animal was violently killed in front of me.

“But as I grew older, I began to comprehend the horror of it, and that it was something most children were not exposed to.”

Local cops and public officials turned a blind eye because “some of them were a part of it. They were in The Group!” Alison claimed.

As Radar has reported, Alison — a mother-of-four and a former heroin addict who worked as a prostitute — was hospitalized in 2015 for severe brain trauma following a mysterious attack.

She’s begged Mariah, 48, for help, but her famous sister — who’s worth $520 million — has ignored her pleas.

Despite that, Alison said: “Mariah, I love you, and I desperately need your help! Please don’t abandon me like this!”

Terrible Memories

Alison, who bears a striking resemblance to her famous younger sister, claims that she was sexually abused at the meetings.

“Then terrible things would happen – things that a child should never see,” she said.

I was sexually abused there. They told me that if I didn’t do what they told me or if I told them what was going on they would harm Mariah.

She said the experience still haunts her,

“Imagine being told that as a child? Of course I went along with what they said. I think I was about six when I first remember going there and it went on for a few years.”