The BBC will introduce you. There are three of them. They met at karate school.
They are now karate black belts, but because of their particular Christian beliefs, they have also decided to do battle – they say – against evil spirits or demons. They believe that these demons can possess a human being and cause suffering, depression or addiction.
“A demon can’t just come into anybody whenever it chooses to – God doesn’t allow that,” says Brynne.
“What happens is when someone sins or does something, or something’s done to them that allows the demon to come into them, that’s called the legal right or the reason that it’s there.”
Is that a fact – and how does Brynne think she knows that?
The young women have been trained by Brynne’s father, the Reverend Bob Larson, who says he has performed more than 15,000 exorcisms. They have appeared alongside him in America and overseas, including the UK.
They were told it by an apparently ignorant and credulous cleric, and they didn’t have the resources to know it was bullshit, so now they think they know it.
“Every single country has a specific kind of demon,” says Tess, 18, who loves music and reading.
They believe that the UK in particular is a hotbed for “witchcraft”, because of the popularity of J K Rowling’s Harry Potter books.
“The spells and things that you’re reading in the Harry Potter books, those aren’t just something that are made up, those are actual spells. Those are things that came from witchcraft books,” says Tess.
Well here’s a fun fact: things can be in books and still be made up. Things can be in “witchcraft books” and still be made up.
Exorcism is an ancient practice and one that appears in many different religions, but many believers doubt the existence of demons.
Sigmund Freud, the founder of psychoanalysis, saw spirit possession as a neurotic delusion, and demons as repressed “instinctual impulses”.
Freud? What’s Freud got to do with anything?
Tess, Savannah and Brynne have all been home-schooled. In Brynne’s case it was because her father’s profession led the family to travel widely.
“With going [to] over 20 countries and stuff, I don’t really have time to go to school, but I’ll just sit at my desk and work on calculus or read all my books,” she says. “This is so much better than going to a stinky old school room.”
Brynne and Tess have been awarded places at college this year, while Savannah is already a college student. But as well as continuing their education they are determined to continue their spiritual battle against what they see as the forces of evil.
Well let’s hope they’re not going to a bible college, and will actually learn something now.