David B and the Terrible Rocks

David B didn't want to go home to Comfy Cove. He wanted to stay up late, like the big boats. As day turned to night, David B sang, "chug-chug-chug" in the moonlight. When the moon set he remembered a tale of boat-eating rocks that would come to life on moonlit nights. In the dark, he hears something. It's not the scary rocks. It's something else