Eventually, the crew discovered an ancient, overgrown temple. The entrance was guarded by intricate traps that utilized sound to protect the artifact. Using teamwork and ingenuity, they managed to bypass the traps.
Inside, they found the Echo Stone resting on a pedestal. As Luffy reached out to take it, the room filled with a cacophony of distorted echoes. The crew struggled to keep their sanity as the echoes seemed to come alive.