Ginger had seen the dark spot in the hills many times. From far away, it didn't look like much. Just a small black mark beneath a ledge of rock, high above the dusty trail. But every time Ginger passed it, she wondered.

Was it only a shadow? Was it a hole? Or was it a cave?

One afternoon, Ginger decided to find out. She followed the trail until she reached the place where it curved below the rocky hillside. Then she left the path and began climbing.

The hill was steeper than it had looked from below. Loose stones rolled beneath her shoes. Dry grass scratched her legs. Once, Ginger grabbed a branch to steady herself and nearly pulled the whole bush out of the ground. “This had better be a cave,” she muttered.

At last, she reached the ledge. It was a cave. The opening was taller than Ginger and almost hidden behind scrubby bushes and a large boulder. She stood outside and peered in. The sunlight reached only a few feet. Beyond that was darkness.

Ginger picked up a small stone and tossed it inside. Clink. Then silence. She tossed another one harder. Clink... clink... clink. The sound traveled farther than she expected.

Ginger smiled. Definitely a cave. She stepped inside. Immediately, the air changed. Outside, the afternoon was hot and bright. Inside, the cave was cool enough to raise tiny bumps on Ginger's arms. She waited until her eyes adjusted.

The walls were rough and reddish brown. Tiny cracks ran through the stone, and in one place something glittered when the sunlight touched it. Ginger ran her fingers across it. “Treasure,” she whispered.

It probably wasn't. But Ginger thought there was no harm in pretending. She took another step. Then another. Soon she reached the place where the sunlight ended.

Ginger stopped. She had brought a small flashlight. She switched it on. A narrow beam appeared. The cave continued. That was interesting. Very interesting. Ginger walked farther. Her footsteps sounded strange underground.

Crunch. Crunch. Crunch.

Every sound came back to her. She shined the light along the walls. There were little shelves in the rock. Holes. Cracks. Places where water had once carved smooth curves into the stone.

Then something moved above her. Ginger froze. A faint scratching came from the ceiling. She raised the flashlight. Two tiny eyes reflected the beam. Ginger gasped. Something fluttered past her head. Then another.

Bats. Ginger ducked. Several small bats swept through the cave and disappeared toward the entrance. Her heart pounded. “Well,” she whispered when they were gone, “you could have warned me.”

She continued. A little more carefully this time.

The passage narrowed and curved. When Ginger looked behind her, she could no longer see the cave entrance. Only darkness. She hesitated. She knew she should probably turn around. But just ahead, the flashlight revealed something strange. Marks on the wall.

Ginger moved closer. Three long scratches crossed the stone. Beside them were several smaller ones. Ginger stared. Had an animal made them? A person? How long had they been there?

She touched one.The mark was deep.

Suddenly, exploring the cave didn't feel quite as much like a game. A sound came from somewhere ahead.

Scrape.

Ginger stopped breathing. She listened. Nothing. Then…

Scrape.

Something was in the cave. Ginger's imagination immediately supplied several possibilities, none of them good. A mountain lion. A bear. A creature nobody had discovered yet.

She backed away. The flashlight shook slightly in her hand.

Scrape.

That was enough. Ginger turned around. Only then did she realize something. She wasn't certain which way she had come. The cave wall split around a large formation of rock. There was a passage to the left. And another to the right.

Ginger stared at them. She didn't remember two passages. Her stomach tightened. “Think.”

She shined the flashlight down one passage. Nothing. Then the other. Nothing. Both looked exactly the same.

For the first time that afternoon, Ginger wished she had never climbed the hill. Then she noticed something on the ground. A small white stone. Ginger remembered it. She had stepped over it earlier. She followed that passage. A few yards farther, she found the glittering patch in the wall. Then she saw something wonderful.

Light. A tiny gray glow appeared ahead.

Ginger hurried toward it. The glow became brighter. Then suddenly she stepped out of the cave and into the afternoon sun. She had never been so happy to squint.

Ginger sat on the rock outside. Her heart was still beating fast. Behind her, the cave looked exactly as it had before. Quiet. Dark. Mysterious.

Then something rustled inside. Ginger stood. A small animal waddled from the cave. It had gray fur, a pointed nose, and a ringed tail. A raccoon.

The raccoon looked at Ginger. Ginger looked at the raccoon. It scratched at the dirt.

Scrape.

Ginger put her hands on her hips. “You?” The raccoon blinked. “You nearly scared me to death.”

The raccoon seemed completely unconcerned. It wandered toward the bushes and disappeared. Ginger laughed. But only a little.

She looked back into the cave. She still wanted to know what was farther inside. She wanted to know who, or what, had made those scratches. She wanted to know how deep the cave went.

But Ginger had learned something. Curiosity could take you wonderful places. It could lead you up hills, beneath old trees, along forgotten trails, and into caves hidden in the rocks.

But curiosity wasn't the same thing as being careless. Some mysteries didn't need to be solved all at once.

Ginger climbed carefully back down the hill. At the bottom, she turned for one last look. From there, the cave had become a small black spot beneath the rocks again. Most people passing along the trail probably wouldn't even notice it.

 Ginger smiled. She knew what was there now. Well...she knew some of what was there. And somehow, leaving a little mystery behind made the cave even better.

The next time Ginger explored it, she decided, she would bring someone with her. And two flashlights. Just in case.