"Ages 8-12"--Front jacket flap

"Rick Kotani is looking forward to spending the entire summer playing baseball. Sure, his team never wins, but he's been practicing a special pitch he knows is going to land him a 400-million-dollar major-league contract . . . someday. That all changes when his mother throws a curveball of her own: Instead of playing ball in California, Rick will be heading to Oregon to help keep an eye on Grandpa Hiroshi while they move him to a retirement home. Trading no-hitters to be a babysitter? Rick is beyond bummed. But once there, Rick discovers Grandpa is actually pretty cool, and the two bond over a Japanese folktale about a fisherman, Urashima Taro, who trades his life on earth for the riches of an underwater kingdom. And like the fisherman, Rick soon forgets about his team back home when he joins a supercompetitive local league that only cares about being the best--at any cost. As the team racks up the wins and Grandpa makes his final move, Rick must decide which ending he wants for his story: Will he fall in line with his ruthless teammates and their victory-obsessed coach in his own 'underwater kingdom,' or will family, true friendship, and integrity lead him back to shore?"--Amazon