He stood up, unease crawling up his spine. The sound was unnerving, as though it was moving around him, coming from different directions. Nathan took a cautious step forward, scanning the space. The room was still—no one was there, no movement. Everything was as it should be.
Nathan hesitated, still uncertain. The sounds had been so real, so tangible. He peered around once more, checking the shadows in the corners. Everything was in place, no sign of disturbance. He exhaled sharply, trying to calm his racing heart, reminding himself it was just the exhaustion playing tricks.