Four people clutched their muskets tightly, and led by the glowing stone, they walked slowly and quietly into the depths of the tunnel, only stopping when they reached a giant passage that drained into the Coco River. The water flowed quickly below, and it was about a meter deep; they paused their steps here, not rashly moving forward.
"Boss, shall we go down?"
Upon hearing the question from behind, the leading man gestured with a quiet "shush" and then gently tossed the stone out. The stone hovered in midair, glowing once again, but this time, it wasn't the walls around them that flickered with purple light but the rushing waters below.
"It's right beneath the water!"
The boss's pupils contracted, and he immediately raised his musket and fired a shot downwards,
"Bang!"
"They're right beneath us!"