The Haunted Cave (Spooksville #3)
There is a famous cave located just outside of Spooksville.  Many stories surround the dark place: scary ones as well as exciting ones.  Hearing the amazing tales, Adam is tempted to explore the cave with his new friends: Watch, Sally, and Cindy.But thte moment they enter the cave, the entrance closes behind them.And they are trapped in the dark.They walk deeper into the cave, frantically searching for a way out.  The batteries in their flashlights begin to run low.  Then they realize something is following them.  Something that has been in the cave for a very long time.Something big and black and hungry.