The Sceptre and the Kingdom

El Cetro y el Reino is a Spanish comic book that was distributed by  as a pre-order bonus for Kingdom Hearts. It consists of 12 pages which tell an alternate story of Kingdom Hearts, including one Disney world not yet featured in the series.

Story
A creature with wings and a helmet similar to those worn by Soldiers appears from out of nowhere, and its goal is to steal the legendary Fairy Spectre which it will use to uncover the Sword in the Stone and bring Great Britain under its rule. The figure disappears with the Spectre after narrowly avoiding Goofy. Minnie alerts Donald, who is depicted here as being capable of transporting himself and others to different worlds via his magic.

Donald attempts to use this technique to transport Sora and Riku to where the figure has fled, but the spell fails and they are instead sent to La Cité des Cloches. They promptly bump into Judge Claude Frollo, who happened to be passing there. One of Frollo's thugs claims to have seen them appear out of nowhere, and Frollo declares witchcraft-practicing outlaws to be arrested and burned at the stake. Sora and Riku run for it, unaware that they are being watched from above.

As they flee, they come across a beautiful young gypsy woman named Esmeralda, who helps them escape Frollo. Once they are safe, she introduces them to Quasimodo, a resident of Notre Dame cathedral. Sora asks Esmeralda if she happens to be the world's princess, but she claims that she is not. Riku looks over the balcony and Sora joins him, deciding that they may be able to find a door back to their own world. One of the gargoyles answers Sora, asking him what kind of door he seeks, and then takes him to the world's door, which opens a door to the next world, where the figure truly is.

Once in Britain (in a world based on ), Sora and Riku find the figure, who throws a magic attack at them, but a passing youth known as Wart throws water underneath the figure, causing it to slip, giving the owl Archimedes the chance to take back the Sceptre. With the weapon in Sora and Riku's hands, Archimides and Wart request help from Merlin to return them both to Disney Castle. The comic ends as they are sent back and return the Sceptre to its rightful place.

La Cité des Cloches
Frollo's guards also appear.

Trivia

 * The Sword in the Stone-based world has yet to make an official appearance in the series. Only Merlin has appeared so far, tutoring Sora in magic in Kingdom Hearts and helping him drive Maleficent away in Kingdom Hearts II.