A/N: There's no need for this to be long, since it's just the solution to the logic problem. Hope y'all enjoyed it! Let me know if you want more battle of wits! I don't want to spend the time to both write a battle of wits and include a lot of characterization, as you can clearly see here, so any future battles would focus on just that: the actual battle.

The more they thought about it, the more confused they became.

There were only nine people on the island: the nine they encountered thus far.

E and F's killer was in the room with them.

A, nor B, nor any of the other seven were in the room with them.

Therefore, no person on the island was in the room with them.

Therefore, the killer couldn't be a person.

Therefore...

The Elves tried, again and again, to work their way out of the logic; but, no matter how hard they tried, they always came back to the same conclusion: the murderer had to have used magic.

Human magic was the killer.

After another hour of debating, they came before Sora and bowed their heads.

"The killer was a human using magic."

It was their acknowledgement: Sora had won. The only thing that remained was the Explanation. Did he cheat? Do all the facts line up? This was their final hope: maybe he contradicted himself somehow!

Alas for the Elves, 'twas not so.

"Well, I suppose you're all dying to know whodunit!" Sora twirled about and landed in his comfy throne. Shiro jumped onto his lap.

"There were nine people on the island, as stated by a fact: there are no others on the island than the nine persons we have encountered thus far. But who did you encounter, exactly?"

The eight, of course; they were clearly seen and identified. And the body in the suite.

"By the rules of the narrative, the narrative recorded what they thought. They saw a human body, which thus was the ninth person on the island; they thought that body was A; but that doesn't mean it actually was A!"

"Ah!" One of the Elves interrupted. "But you said that 'A never left the apartment,' and that 'A was alive' and that 'A intended for those words to be heard by those people at that exact moment.'"

"All of which is true! A was never on the island! His assassin was there in his stead, faking his death. It's true that A never left the apartment, because you have to be in an apartment before you can leave it! It's true that A was alive; just not on the island! It's true that A intended for those words to be heard by those people at that exact moment; he was speaking over a phone! This was all a set-up to kill off several of them and frame the rest for their murders!"

"From this, the truth of all the other facts are easily ascertained. The assassin could enter and exit by the window, since he wasn't A, B, C or any of the other nine, who were bound by a fact to enter and exit only by the door; he was free and able to commit every murder."

He stood and bowed. "And so Blank wins again. Stephanie: handle everything else."

And so Sora and Shiro enjoyed a good many laughs, while Stephanie had to handle nine irate and irritated Elves in the adoption of Elven Garde as a member state of the Elkia Federation. Jibril cackled and badgered the Elves until they left in tears.

The end.