Please take me back.
Bill and his Kabutops continued through this forested area. Shelly would be able to chop through most of the obstacles ahead, which was certainly useful for the young trainer. Looking around for any sort of clue to this place would be like looking for a hay in a needlestack. Still the trainer held on the hope that maybe the next brush would reveal something, anything about this place, but the more they continued, the more hopeless this journey seemed. Still Bill kept a close eye on his surroundings, taking note of landmarks and whatnot in case they got discouraged enough to head back home. However, the last brush that Shelly cut, revealed something that was shocking to both the Pokemon and the trainer. A barren wasteland was the best thing that Bill could find that described this area. Albeit it wasn't exactly a large area, just an odd place where no plant life can be found at all.
"This reminds me more of those typical pictures of volcanoes," Bill said to Shelly. He turned back towards the lush area, then back to the wasteland. What was different about this area that caused no flora to grow? This was indeed a curious case, but not exactly a helpful clue to find the Rock Pool. It wasn't until a sign caught his attention. It looked old and rickety, though maybe just maybe it would say something like "Rock Pool this direction" or something. He approached it, and as he did, the sign seemed to restore itself. Odd, thought the trainer, but he just continued until he reached it. A riddle was portrayed on the sign itself. The trainer looked at the sign, making mental notes of the various lines. He turned to Shelly who was resting at the base of the sign. It was obvious she didn't care about this as much as Bill did. After some thinking, he said, "Sounds to me like it'd be a pearl of some sort." It was white like a goose's gown, it could be considered a stone, it was often found at the bottom of the ocean as "washed over the island" suggested, and Clamperl are known to have it, which could explain the bit with a shell.
But the answer alone might not be enough. He might actually have to find where this pearl might be, as it sounds like it's looking for a specific one rather than any old pearl Bill could've found on his adventures. "Well, it's not much of one, but this might be our first clue about the Rock Pool at any rate. Let's see if we can find a pearl or a white stone of some sort." Shelly got up from her position, nodded her head, and started walking in a random direction.