When Joe Stoshack's dad ends up in the hospital after a car accident, he has two words to say to his son: Mickey Mantle. For Stosh has a special power -- with a baseball card in hand, he can travel back in time. And his dad has a rare card -- Mantle's valuable 1951 rookie card. "I've been thinking about it for a long time. Go back to 1951. You're the only one who can do it," Dad whispers.

That night Stosh grips the card and prepares for another magical adventure. But when he opens his eyes, he's not in Yankee Stadium -- he's in Milwaukee on June 8, 1944. And how he wound up there is not half as surprising as what he finds!

Dan Gutman is the author of many fantastic books for young readers. Besides baseball, he has written about soccer, basketball, bowling, and aliens. When he is not writing books, Dan is very often visiting a school. Thanks to his many fans who voted in their classrooms, he has received fifteen state book awards and thirty-seven state book award nominations. Dan lives in Haddonfield, New Jersey, with his wife, Nina, and their two children, Sam and Emma.