61 books • 10 series
Book #1: Ballpark Mysteries Super Special #1: The World Series Curse
Book #1: Fenway Foul-Up
Book #1: Ballpark Mysteries, Books 1-5
Book #2: Ballpark Mysteries Super Special #2: Christmas in Cooperstown
Book #2: Pinstripe Ghost
Book #3: Ballpark Mysteries Super Special #3: Subway Series Surprise
Book #1: The Two-Minute Warning
Book #1: Zillion Zombie Heist
Book #1: MVP #1: The Gold Medal Mess
Book #2: MVP #2: The Soccer Surprise
Book #3: MVP #3: The Football Fumble
Book #4: MVP #4: The Basketball Blowout