The Unwilling Umpire (A to Z Mysteries) by Ron Roy, John Steven Gurney

Help Dink, Josh, and Ruth Rose solve mysteries from A to Z!
 
Kids love collecting the entire alphabet and super editions! With over 8 million copies in print, the A to Z Mysteries® have been hooking chapter book readers on mysteries and reading for years. Now this classic kid favorite is back with a bright new look!
 
U is for Umpire . . . Play ball! While the whole town of Green Lawn is watching the women take on the men in a charity baseball game, Mr. Pocket’s prized baseball collection is stolen! The police suspect the umpire of foul play. Can Dink, Josh, and Ruth Rose prove his innocence . . . or will they strike out?