The hum was very low and the sound was low and stuttering, mixed with a low, muffled mumble. Sarah intercepted Iris's hand. She shook her head silently.
The long hallway they went through had no openings or windows to see what was behind the walls of this passage. Iris tapped her finger against the wall and came closer.
"Don't be weird, we don't know what's in there." Sarah approached in a half-whisper, trying to push Iris forward so they could walk straight. "We have to get out of this Prison immediately, I can't stand it!"
Iris brushed Sarah's hand away. She put her index finger to her lips. Sarah immediately covered her mouth tightly and put her hands on her hips. Iris looked up and saw that this passage was high and there was a slight gap in it.
"Iris!"
Sarah realized Iris' intention, she immediately withdrew her hand again and shook her head with bulging eyes. "This might be a trap, but Miguel can't let us down."