Emillio, Jason, and Pedro run to Room 230. The room is dark, but they still enter anyway.

Emillio looked at Jason. "Lighter."

Jason lights up his lighter. Emillio looks around and sees a desk with a tape, a collar, and a card that says "Put Collar On".

"I call the collar," Pedro exclaimed as he ran to the table.

He picks it up and puts it around his neck. He then tries to take it off, but is unable to.

"What the hell," he exclaimed. "Help me!"
"Fucking dumbass," Jason yelled as he tried to help him.

Emillio takes out the previous tape from the tape recorder and inserts the new tape.

Welcome to Room 230. In front of you is a collar, but there's something different about it. You only have 2 minutes to remove it, but every 5 seconds, the collar will send a random amount of volts of electricity throughout your body every time. Find the key and unlock it from your neck. The key can also be used to open the main gate. You're hint: 125 minus 120 and it's difference's square root. Live or die: Make your choice.

"Shit," Pedro yelled.

He frantically goes through a desk's drawers while Jason and Emillio go through the closet.

"Fuck, fuck, fuck," Pedro exclaimed.

He screams as he is shocked by the collar.

"This is why you don't put random shit on," yelled Jason.

Pedro is shocked again. Emillio kicks the closet's side and looks away. He sees a bookshelf with large textbooks.

"The hint was 125 minus 120," he thought. "5 to the second power would be 25."

He counted the books on the shelf.

"25 books," he exclaimed.
Jason looked at him. "What?"
"There's 25 books on the shelf," Emillio explained. "The answer to the hint is 25!"

Pedro rushes to the bookshelf and pulls out the last book on the shelf. As he pulls it out, the key falls to the ground.

He picks it up. "Yes!"

The collar shocks him one more time. Pedro screams as he unlocks the collar and throws it to the ground.

"Hell yeah!"
"Sweet, that's one key," said Emillio. "Where do we go next?"
"813," said Jason. "It's upstairs."

Jason follows them outside.

"One down, two to go."