Maxwell’s tattoos

“What’s on your back right now?”
“There’s a curse ward on each shoulder and a Crowley’s Knot between them.”
“What type of wards?”
“One Coptic, one Germanic.”
…
“Crowley’s Knot isn’t doing anything if you’ve got the arma dei,” he mused. “I can move both of the wards around onto your chest or arms if they’re bare.”
I nodded. “I’ve got three Ka marks on my left arm, but that’s it.”
…
“You know once you’ve got a Marley that’s it, right? There’s no going back, no getting rid of it. You’re bound here forever if you can’t resurrect yourself.”

Excerpt From Ex-Communication, pg 232-233
Peter Clines
https://books.apple.com/us/book/ex-communication/id635706546