Frank the Zombie awoke with one thing on his mind. “Brains!” Frank muttered. Frank walked with a halting gait toward the mall. “Brains!” Frank called, but all of the humans were safely locked inside. Frank headed to his next favorite feeding spot, a college campus. “Brains!” Frank cried, but there were no humans in sight. Frank wandered down Main Street, calling for brains but was destined to stay hungry that night.
What is a detail that supports the main idea?