Sophie is on a mission. You can call her Agent S. Like any good spy, Sophie knows how to be safe. She helps her brother stay away from danger too. They watch for speeding cars. They avoid strangers. And they never goof around on the school bus!

Gina Bellisario is the author of fiction and nonfiction books for young readers (and the grown-ups who read to them). She lives with her husband and their twin young readers in Park Ridge, Illinois.