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. In the opening installments of the Zach and Zoe Mysteries, best-selling author Mike Lupica begins a series for a new and younger audience, introducing listeners to a sports-loving detective duo who can swing for the fences and catch the culprit in one fell swoop.

Chris Conlan is the coolest kid in sixth grade, the golden-armed quarterback of the football team and the boy all the others look up to. Scott Parry is the new kid, the boy with the huge brain, but with feet that trip over themselves. These two boys may seem like an odd couple, but each has a secret that draws them together, and proves that the will to succeed is even more important than raw talent.

Jack Callahan is the star of his baseball team and sixth grade is supposed to be his year. Undefeated season. Records shattered. Little League World Series. The works. That is, until he up and quits. Jack's best friend Gus can't understand how Jack could leave a game that means more to them than anything else. But Jack is done. It's a year of change.

Wes' father always told him there was only one ball in basketball: that you had to know when to take it yourself and when to give it up, that finding the right balance was key. So at every practice and game, Wes tries his best to be a good basketball player and, above all, a good teammate. As the season kicks off, Wes finds that not everyone on his team has the same idea. All-star player and Hawks point guard Danilo "Dinero" Rey seems determined to hold the spotlight and the ball, even if it means costing his team the game.

Josh Cameron has it all: a World Championship ring with the Boston Celtics, an MVP award, a clean-cut image, and the adoration of millions. What he doesn't have is family -- until the day 12-year-old smart aleck Molly Parker confronts him in a parking lot and claims to be his daughter, the only daughter of Jen Parker, Josh's college sweetheart and the still the only girl he's ever loved. Trouble is, Jen Parker died last year, and now Molly has tracked down the father she never knew.

Clay is a quarterback's dream. When he zips across the field, arms outstretched, waiting for the ball to sail into his hands, there's no denying him the catch. Like most Texans, Clay is never more at home than when playing football. And his coach, a former star player for the Dallas Cowboys, is just like a second father. But as the football season kicks off, Clay begins to notice some odd behavior from his coach....

Twelve-year-old Danny Walker may be the smallest kid on the basketball court, but don't tell him that. Because no one plays with more heart or court sense. But none of that matters when he is cut from his local travel team, the very same team his father led to national prominence as a boy. Danny's father knows Danny isn't the only kid who was cut for the wrong reason, and together, this washed-up former player and a bunch of never-say-die kids prove that the heart simply cannot be measured.

When the Brighton Bears suit up on game day, 12-year-old Tommy Gallagher is the toughest kid on the football field. And the bravest. After all, his father Patrick is a Boston firefighter - one of Boston's bravest. Tommy's dad taught him everything he knows about football - and life. Yet even Tommy isn't strong enough for what happens when the sirens ring and, for the first time, they're racing away from the fire. "First man in; last man out" had always been his dad's motto, yet he never said anything about leaving in an ambulance.

There's a reason teammates call him "True". Because for basketball phenom Drew Robinson, there is nothing more true than his talent on the court. It's the kind that comes along once in a generation and is loaded with perks - and with problems. Before long, True buys in to his own hype, much to the chagrin of his mother, who wants to keep her boy's head grounded - and suddenly trouble has a way of finding him. That is, until a washed-up former playground legend steps back onto the court....

12-year-old Charlie is a fantasy football guru. He may be just a bench warmer for his school's football team, but when it comes to knowing and loving the game, he's first-string. He even becomes a celebrity when his podcast gets noticed by a sports radio host, who plays Charlie's fantasy picks for all of Los Angeles to hear. Soon Charlie befriends the elderly owner of the L.A. Bulldogs - a fictional NFL team - and convinces him to take a chance on an aging quarterback.

Jake Cullen is a freshman quarterback playing high school football in the high-pressure land of Friday Night Lights (Texas). He is also the brother of Wyatt Cullen, who quarterbacked his team to the Texas State Championship last season - not to mention the son of former NFL quarterback and local legend, Troy Cullen. To be a Cullen in Texas is to be royalty…and a quarterback. All of which leaves 14-year-old Jake in a Texas-sized shadow, a tall order for any boy, especially one who's merely a freshman.

Thanks to Kate's mom, a sports reporter, cousins Mike Walsh and Kate Hopkins have tickets to the Red Sox game and All Access passes to Fenway Park. But as they're watching batting practice before the game, the lucky bat of Red Sox star slugger Big D is stolen...right in front of dozens of people. Without the bat, Big D can't seem to hit a thing. Can Kate and Mike figure out who pinched the bat before Big D and the Sox chalk up a loss? The Fenway Foul-Up includes a fun fact section about Boston's Fenway Park.

New York Times best-selling author Mike Lupica scores a touchdown with his new middle-grade sports series!Ben McBain is every football team's dream player. He's a jack-of-all-trades guy that can handle almost any position. When the game is on the line, Ben's number is the one being called for the final play. But Ben wants to be the starting quarterback and the one thing standing in his way is the coach's son.Shawn O'Brien looks the part.

Will Tyler can fly on a football field. He may not be the biggest running back around, but no one can touch him when it comes to hitting the hole and finding the end zone. And no one can match his love of the game. When Will has a football in hand, he may as well be flying for real because life can't touch him - his dad isn't so defeated, his town isn't so poor, and everyone has something to cheer for. All of which does him no good if the football season is canceled.

Red Sox versus Cubs. Game five. It looks like Mike and Kate are about to watch the Cubs win it all. But then someone starts messing with the team - ruining equipment, getting Cubs players in trouble, and even stirring up an old baseball curse. Now the Red Sox are coming back! Who will win the ultimate baseball trophy? And can Mike and Kate make sure it's won fair and square?