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.

Batter up! Baseball action and exciting whodunits star in this chapter book series! Next up is Atlanta! The A-team takes A-Town! Mike and Kate are in Atlanta, where Hammerin' Hank hit his legendary 715th home run. But Hank's historic bat and ball, which he used to break Babe Ruth's record, have been stolen! Good thing Mike and Kate are sleuthing pros. Can the cousins track down Hank Aaron's missing treasure . . . before it's gone forever? Ballpark Mysteries are the all-star matchup of fun sleuthing and baseball action, perfect for readers of Ron Roy's A to Z Mysteries and Matt Christopher's sports books, and younger siblings of Mike Lupica fans. Each Ballpark Mystery also features Dugout Notes with more amazing baseball facts.

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

Cousins Kate and Mike visit Kate's father, a baseball scout for the Dodgers, in Los Angeles just as a series of suspicious events lead him to think that someone is trying to steal his scouting reports.

“If you liked Chaos, you’ll love Complexity. Waldrop creates the most exciting intellectual adventure story of the year” (The Washington Post). In a rarified world of scientific research, a revolution has been brewing. Its activists are not anarchists, but rather Nobel Laureates in physics and economics and pony-tailed graduates, mathematicians, and computer scientists from all over the world. They have formed an iconoclastic think-tank and their radical idea is to create a new science: complexity. They want to know how a primordial soup of simple molecules managed to turn itself into the first living cell—and what the origin of life some four billion years ago can tell us about the process of technological innovation today. This book is their story—the story of how they have tried to forge what they like to call the science of the twenty-first century. “Lucidly shows physicists, biologists, computer scientists and economists swapping metaphors and reveling in the sense that epochal discoveries are just around the corner . . . [Waldrop] has a special talent for relaying the exhilaration of moments of intellectual insight.” —The New York Times Book Review “Where I enjoyed the book was when it dove into the actual question of complexity, talking about complex systems in economics, biology, genetics, computer modeling, and so on. Snippets of rare beauty here and there almost took your breath away.” —Medium “[Waldrop] provides a good grounding of what may indeed be the first flowering of a new science.” —Publishers Weekly

Batter up! Baseball action and exciting whodunits star in this series! Next up is Washington D.C. and the Nationals team! Mike and Kate are about to face their biggest, most important mystery yet! Why? It involves the president of the United States! The president’s brother is a catcher on the Nationals baseball team, and someone is stealing his equipment! Can these super-sleuths help the commander in chief catch a criminal? Ballpark Mysteries are the all-star matchup of fun sleuthing and baseball action, perfect for readers of Ron Roy’s A to Z Mysteries and Matt Christopher’s sports books, and younger siblings of Mike Lupica fans. Each Ballpark Mystery also features Dugout Notes, with more amazing baseball facts.

While visiting New York's Yankee Stadium with Kate's mother, cousins Mike and Kate decide to investigate the rumor that the ghost of Babe Ruth is haunting the stadium.

Batter up! Baseball action and exciting whodunits star in this chapter book series! Next up is St. Louis Cardinals! It's a special day in St. Louis, and there's a pregame celebration with Clydesdale horses that drive around the edge of the stadium before the game. Mike and Kate get to meet the horses and the Dalmatian that rides along. Then, during the game, they find out the Dalmatian is missing. They rush to investigate and find a ransom note. The criminal will return the dog if they can get one of St. Louis's World Series trophies! Can Mike and Kate catch the crook and rescue the pup? Ballpark Mysteries are the all-star matchup of fun sleuthing and baseball action, perfect for readers of Ron Roy's A to Z Mysteries and Matt Christopher's sports books, and younger siblings of Mike Lupica fans. Each Ballpark Mystery also features Dugout Notes with more amazing baseball facts.

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.

A compelling case can be made that violent crime, especially after the 1960s, was one of the most significant domestic issues in the United States. Indeed, few issues had as profound an effect on American life in the last third of the twentieth century. After 1965, crime rose to such levels that it frightened virtually all Americans and prompted significant alterations in everyday behaviors and even lifestyles. The risk of being mugged was a concern when Americans chose places to live and schools for their children, selected commuter routes to work, and planned their leisure activities. In some locales, people were afraid to leave their dwellings at any time, day or night, even to go to the market. In the worst of the post-1960s crime wave, Americans spent part of each day literally looking back over their shoulders. The Rise and Fall of Violent Crime in America is the first book to comprehensively examine this important phenomenon over the entire postwar era. It combines a social history of the United States with the insights of criminology and examines the relationship between rising and falling crime and such historical developments as the postwar economic boom, suburbanization and the rise of the middle class, baby booms and busts, war and antiwar protest, the urbanization of minorities, and more.