Now batting clean-up—book #4 in a new early chapter book mystery series where each book is set in a different American ballpark!

Houston, we have a problem! Before a game at the Astros' ballpark, Mike and Kate get to meet astronaut commander Nick Rice at the nearby Houston Space Center. He's planning to display a very rare moonrock at an autographing event later. But just before the event, a nefarious outlaw knocks out the commander and steals the moonrock! Can Mike and Kate figure out who did it . . . when their only clue is a broken green feather?

The Astro Outlaw includes a fun act page about the Houston Astros' stadium with trivia about the train on the outfield wall and the homerun gas pump.

Cross Ron Roy's A to Z Mystery series with Matt Christopher's sports books and you get the Ballpark Mysteries: fun, puzzling whodunnits aimed at the younger brothers and sisters of John Feinstein's fans.

While visiting Houston, Texas, Mike and Kate tour the Johnson Space Center with an astronaut in the morning and at the Houston Astros' ball game that evening, the cousins search for the person who stole the astronaut's moonrock when he arrived at the stadium to sign autographs. Simultaneous.

While visiting Houston, Texas, Mike and Kate tour the Johnson Space Center with an astronaut in the morning and at the Houston Astros' ball game that evening, the cousins search for the person who steals the astronaut's moonrock when he arrives at the stadium to sign autographs.

Mike and Kate tour the Johnson Space Center with an astronaut in the morning and at the Houston Astros' ball game that evening, the cousin's search for the person who steals the astronaut's moonrock when he arrives at the stadium to sign autographs.