Ages 8-12. Simon & Schuster Books for Young Readers.
Grades 4-6. Simon & Schuster Books for Young Readers.
Summary
When Charlie's classmate Anthem mysteriously disappears after bringing a supposed space rock to show-and-tell, the Whiz Kids trace his steps to his eerily empty house, where it becomes clear that Anthem and his father are involved in something much bigger than a lost rock.