There was a flash on the news, and apparently a creator was hosting a game of murderer Mystery.

There would be one murderer per AU, and one Sheriff, the rest we're innocent, the rules were that Sheriff had to Kill the murderer to save the innocents

Murderer and Sheriff are not allowed to team up

Normal attacks do not work on murderer, only the gun does

If time runs out, Sheriff dies

game lasts 24 hours

Everyone was forced to participate

Dream and Nightmare were in the same AU at the time along with their friends, ironically Nightmare got murderer, and Dream got Sheriff.

They didn't know, of course

"I'll protect my brother" they both thought, they then glanced at eachother.

After a couple hours, Dream was nervous, he continued walking around, he wondered if Nightmare was safe

He then heard Blueberry scream from a room and ran to check

It was dark, he couldn't see anything.

He saw a blue eye swiftly turn back to look at him, and without thinking he shot at it blindly...

Then the speaker came on as well as the lights

"Well done, Dream!"

"Murderer: Nightmare has been defeated!"

Dream then looked down to the person he had just shot and he trembled, almost dropping his gun in the process.

"...B-Brother?"