Glass Tubes

"Woah... What is this...?"

Just now, we passed by a door. It looked like any other door in this facility, but the room behind that was weird. The air inside was unusually cold. 

I didn't even need Wind Sense to feel the temperature inside the room. The cold air was leaking out of the door's seams despite how tight they are. 

"Hey, Luffy. Let's stop here."

"*Gulp*... yeah."

"It seems to me that you're familiar with this kind of room."

"Mhm..."

That settles it. We're checking out this room. 

Just like every door that we've come across in this place, this one has a small panel touchscreen device beside it. Except it wasn't like the storage room with buttons for closing and opening. There is a symbol that traces the shape of a hand on the display. 

Now, I'm not an idiot to not realize that this requires the handprint of someone with the right qualifications to be scanned.