Kingdom Hearts fic: All Strange Wonders (Chapter 19)

All Strange Wonders on AO3
Or directly to Chapter 19
Fandom: Kingdom Hearts
Rating: T
Ship: Sora/Riku/Kairi

Summary:
Sora is cursed by a warlock to become nameless and forgotten by anyone who knew him. Hoping to find a way to lift the curse, he finds Riku - known as "The Heartless Sorcerer", a man rumored to devour hearts - and Kairi, Riku's contract-bound fire-spirit. Sora strikes a deal with Kairi: if he can help her out of her contract with Riku, she'll help him with his curse. Soon it becomes clear that Sora may not be the only one operating under a curse... and Riku's could possibly be deadly if nothing stops it.

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In Chapter 19: Sora ventures into the Wasteland, and discovers the Warlock's castle.