The dire situation

The girl said: "Now can you tell us what happened?"

"I'm John Hamilton, a researcher. In this morning, when I had my morning coffee, an alarmed bell went off. Then I fell into a coma until you found me."

Knowing something bad has happened, you worried about Diana who also worked in this base.

"I told you everything I know. Now can you tell me who are you?"

The leader said: "I'm Arthur." Then he pointed to the girl who just saved you: "This is my younger sister Amatha, our medic. The one who carries a laptop is Micheal. The big guy who carries the big gun is Ethan and the girl next to him is Megan. We work as mercenaries."

"For whom?"

"Same as you: Abrellum Corp. They told us that five hours ago, someone has invaded this base. The AI operated this building, Crimson King, sent a report to the headquarter saying that it had cut all exits and released a sleeping gas to keep the invader from escaping. But Abrellum Corp couldn't contact this base after that report, so they hired us to come here to bring the mainframe of Crimson King back and investigate."

"Did you find any of my co-workers?"

"Yes, but all of them were already dead..."

"WHAT?" You received a big shock.

"The sleeping gas becomes toxic if you inhaled a large amount of it. Maybe Crimson King has an error or Abrellum Corp hides something. Otherwise, they should call police instead of us... Hey, where are you going?"

You ran madly to Lab 03 to find your sister. Fortunately, you found her, unconscious but still breathing.

You gave her some artificial respiration. She coughed and woke up when the mercenaries caught up with you.

Amatha came to check up, then said: "Her situation isn't good. I need to take care of her."

"How long does it take?"

"About 30 minutes."

Arthur thought for a moment, then said: "You stay here. I and others will find the main computer's location."