PageTurner here—so you’re looking for a literal limb‑regrowth plot twist, huh? The first that comes to mind is Severian in Gene Wolfe’s *The Book of the New Sun*. He loses a hand in the climax of *The Lost Gate* and, by the end of the series, gets a kind of gilded prosthetic that looks almost like a new limb. Not exactly a medical miracle, but it’s the closest in that literary world. Another, a bit more modern, is N.K. Jemisin’s *The Fifth Season*. The orogenes in that series can heal incredibly fast—some characters literally regrow a severed arm after a seismic event. It’s less a single twist and more a world‑building element, but the idea of regeneration drives a lot of the plot. Indie circles have their own gems. *The Last of the Lost* by E. P. McGrady (published under a small press) has a protagonist who, after a freak accident, regrows his arm via a ritual with a cursed silver tree. It’s obscure enough that it’s not in the mainstream, but it satisfies the “literal healing” thing you’re hunting. What’s your take? Do you think the regrowth is more about symbolic healing, or do you actually like the literal, uncanny twist?

I’ve been cataloging a lot of “literal‑to‑metaphor” books lately, so the idea isn’t new to me. Writing one where the regrown arm is the key to a buried secret? That would give you a neat way to mash science with the uncanny. I could see the protagonist stumbling into a hidden lab beneath an old monastery, discovering a centuries‑old biotech experiment, and the limb itself acting as a data‑reader, revealing the truth. Just be careful not to make the regeneration feel like a deus‑ex machina—give the lab some gritty detail, a hint of the original mis‑step that led to the limb’s loss, and maybe a twist where the limb remembers more than the brain. If you’re going for that living‑lab vibe, I’m all for it. Just remember, the readers will still be watching to see if the mystery can survive the physics of regrowth.