Mudville by Kurtis Scaletta

Welcome to Moundville, where it's been raining for longer than Roy McGuire has been alive. Most people say the town is cursed--right in the middle of their big baseball game against rival town Sinister Bend, black clouds crept across the sky and it started to rain. That was 22 years ago . . . and it's still pouring.
Baseball camp is over, and Roy knows he's in for a dreary, soggy summer. But when he returns home, he finds a foster kid named Sturgis sprawled out on his couch. As if this isn't weird enough, just a few days after Sturgis's arrival, the sun comes out. No one can explain why the rain has finally stopped, but as far as Roy's concerned, it's time to play some baseball. It's time to get a Moundville team together and finish what was started 22 years ago. It's time for a rematch.

"From the Hardcover edition."

cover variations