There's nothing eight-year-old twins Zach and Zoe Walker love more than playing sports and solving mysteries. And when those two worlds collide ... well, it doesn't get any better than that.

The Football Fiasco: In this third mystery, Zach and Zoe discover their football has been completely deflated, leaving them without a ball to play with at recess. But who's behind it?

The Soccer Secret: Soccer season is underway, and though Zach and Zoe play on different travel teams, they're on the same team when it comes to solving mysteries. So when a package arrives in the mail addressed to Zach, the twins are surprised to find a soccer jersey identical to the one Zach wears for his team. But Zach's jersey is in his closet - so who does this jersey belong to and why did they send it? It's a soccer secret - and Zach and Zoe are on the case!

The Hockey Rink Hunt: In the fifth instalment of the series, Zach and Zoe solve a hockey-themed mystery.

Once again, bestselling author Mike Lupica charms his youngest readers yet with a sports-loving detective duo who can swing for the fences and catch the culprit in one fell swoop. With a recipe equal parts sports and mystery, the Zach and Zoe Mysteries break fresh ground for an author who has been called the greatest sportswriter for kids.