"Jack and Annie use the magic tree house to travel back in time to 1947 Brooklyn, New York, where they pretend to be batboys at Jackie Robinson's first game with the Brooklyn Dodgers against the Boston Braves"--

"1935. Twelve-year-old Cato wants nothing more than to play baseball, perfect his pitch, and meet Mr. Satchel Paige––the best pitcher in Negro League baseball. But when he and his teammates “trespass” on their town’s whites-only baseball field for a practice, the resulting racial outrage burns like a brushfire through the entire community, threatening Cato, his family, and every one of his friends. There’s only one way this can end without...

Every boy in the neighborhood knows Katy Gordon is their best pitcher, even though she's a girl. But when she tries out for Little League, it's a whole different story. Girls are not eligible, period. It is a boy's game and always has been. It's not fair, and Katy's going to fight back. Inspired by what she's learning about civil rights in school, she sets out to prove that she's not the only girl who plays baseball. With the help of friendly librarians...