One Way Out

You walked out of the locker rooms and to the drinking fountain. You pushed the button but there was no water. That was weird. You walked to the other water fountain and tried again. Nothing. Instead, a deep rumbling sound came from within the pipes. There was obviously a faulty connection. You peeked outside and saw that the hallway was clear. You opened the gym doors and left, checking each water fountain. You saw a terrified Emma Green drinking from the drinking fountain in F Hall. She looked around cautiously and continued to sip from the water.