C447 Gravity Room(1)

In the pitch-black night, the rain turned colder and more biting.

"Ah..."

A chilling scream suddenly pierced the air, sending shivers down everyone's spine.

"Who screamed? What's going on?" someone asked, but there was no reply.

After a moment, a trembling voice spoke up, "The scream... it was right next to my ear, but... there was no one beside me..