I have always enjoyed the Magic Tree House series - for the ease and simplicity with which they expose kids to historical events, cultures, personalities, discoveries and even a simple life lesson to draw from... this book attempts the same but the adventure is too simplistic and the usual charm is missing...
The story is written around baseball - with an underlying theme of racial integration - and takes us all back to a game in Brooklyn NY in 1947...
Jack and Annie - who can hardly play the game themselves - participate in the game as batboys, but miss most of the game after they lose their magic caps and are thrown out of the ground... but their chance encounter with 2 kids (twins) gives them a chance to hear the final stages of the game on radio and join in the celebration as Jackie Robinson helps his team win the game in his debut in major baseball league... they are surprised that only part of the crowd cheers for him while the other call out mean things... they discover that he was the first game ever to have an African American play (something they take for granted in their own time), even more surprised to know that they are the first white people to visit the the twins house... thus they witness - first hand - the harsh but true life as it existed before racial integration...
But it's the courage with which Jackie ignores the insults, stays focused on the game and gives his best that really shines thru as the inspiration - not to be afraid of others making fun of you, but rise above what is mean and low, to stand up and simply try your best - always focusing on the good, and keeping your dignity, your self respect...