A little before midnight on Saturday, a crowd of around 700 gathered in an old industrial warehouse a few blocks from the Detroit River for what they’d been told was the “largest public satanic ceremony in history.” Most of them professed to be adherents of Satanism, that loosely organized squad of the occult that defines itself as a religious group. Others came simply because they were curious. After all, Satanists exist in the popular psyche as those who casually sacrifice goats and impregnate Mia Farrow with Lucifer’s child; if this ceremony was indeed unprecedentedly big, who knew what could be in store?

Read more: The Evolution of Modern Satanism in the United States

The reality of the event — and of the contemporary Satanic movement at large — was tamer, and, if the Facebook pictures speak the truth, harmlessly festive: a cross between an underground rave and a meticulously planned Halloween party. They were there to publicly unveil a colossal bronze statue of Baphomet, the goat-headed wraith who, after centuries of various appropriations, is now the totem of contemporary Satanism. The pentagram, that familiar logo of both orthodox Satanists and disaffected teens, originated as a rough outline of Baphomet’s head.

The statue itself is impressive: almost nine feet tall, and weighing in at around a ton. The horned idol sits on a throne adorned with a pentagram, but it is the idol’s wings, and not his chair, that curiously evoke the Iron Throne from a certain celebrated HBO fantasy series. He has the jarring horns of a virile ram but the biceps of a guy who lifts four or five times a week. His legs, which are crossed, end not in feet but in hooves. It might seem more menacing if not for the two bronze-statue children standing on either side of him — a girl on his left; a boy on his right; both are looking up at him earnestly.

“Baphomet contains binary elements symbolizing a reconciliation of opposites, emblematic of the willingness to embrace, and even celebrate differences,” Jex Blackmore, who organized the unveiling, told TIME late Sunday night. In a sense, the statue is a stress test of American plurality: at what point does religious freedom make the people uncomfortable?

Get The Brief. Sign up to receive the top stories you need to know right now. Please enter a valid email address. Sign Up Now Check the box if you do not wish to receive promotional offers via email from TIME. You can unsubscribe at any time. By signing up you are agreeing to our Terms of Use and Privacy Policy . This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply. Thank you! For your security, we've sent a confirmation email to the address you entered. Click the link to confirm your subscription and begin receiving our newsletters. If you don't get the confirmation within 10 minutes, please check your spam folder.

Blackmore directs the Detroit chapter of the Satanic Temple, one of the few coherent organizations in a field that’s otherwise disorganized and dogmatically nebulous. The Satanic Temple has chapters in Florida and Finland, in Italy and Minneapolis. Its headquarters are in New York, but the Detroit office is its first and largest outpost. Blackmore — who, by the way, uses a pseudonym for safety reasons — grew up in the Detroit metropolitan area and returned to the city to work with the Satanic Temple after attending a lecture on Satanism at Harvard.

Asked whether her group is a religious organization (or rather an anti-religious organization) she explains that it’s less of a church and more of an affinity group, built around what she repeatedly refers to as “Satanic principles.” It’s not the dogma you might expect. To quote from the group’s website:

The Satanic Temple holds to the basic premise that undue suffering is bad, and that which reduces suffering is good. We do not believe in symbolic “evil.”

Most vitally, though, the group does not “promote a belief in a personal Satan.” By their logic, Satan is an abstraction, or, as Nancy Kaffer wrote for The Daily Beast last year, “a literary figure, not a deity — he stands for rationality, for skepticism, for speaking truth to power, even at great personal cost.”

Call it Libertarian Gothic, maybe — some darker permutation of Ayn Rand’s crusade for free will. One witnesses in the Satanic Temple militia a certain knee-jerk reaction to encroachments upon personal liberties, especially when those encroachments come with a crucifix in hand. The Baphomet statue is the Satanic Temple’s defiant retort du jour.

“We chose Baphomet because of its contemporary relation to the figure of Satan and find its symbolism to be appropriate if displayed alongside a monument representing another faith,” Blackmore said.

The monument she refers to is a six-foot marble slab engraved with the Ten Commandments, controversially situated on the grounds of the Oklahoma State Capitol. In 2012, state representative Mike Ritze fronted $10,000 out of his own pocket to have the marker installed in the shadow of the capitol’s dome, prompting the ire of those who believed it flagrantly violated the separation of church and state. The American Civil Liberties Union sued the state of Oklahoma; the Satanic Temple fought fire with fire. If the Christians could chisel their credo onto public property, the argument went, why couldn’t they?

The state didn’t agree, and rejected the Satanic Temple’s petition to place Baphomet’s statute on legislative property. The point is now moot, though: a month ago, the Oklahoma Supreme Court ruled that the Ten Commandments monument violated the state constitution, a judgment that will probably stick in spite of an obstinate governor.

It seems there are battles left to fight, though. A Detroit pastor described the unveiling of the statue as “a welcome home party for evil.” A Catholic activism group in the city actively encouraged people to attend mass at a local cathedral to speak out against the statue — a pray-in, if you will. Meanwhile, Arkansas Governor Asa Hutchinson recently signed a bill that will put the Ten Commandments on a similar monument on the grounds of the State Capitol in Little Rock. The Satanic Temple may be planning a road trip.

Read next: Preaching Pope Francis’s Politics May Be the Key to Becoming President

Listen to the most important stories of the day

Contact us at letters@time.com.