Identical twins and mirror opposites Tom and Eddie share a "road trip" between planets and risk everything to save their father from the alien scientists.

Tom is a smart, talented loner with a chip on his shoulder and a big secret: an imaginary twin on another planet. Eddie is Tom's opposite, a friendly, athletic kid who always looks on the good side. Tom worries sometimes: does confiding in Eddie mean he's nuts? The truth is even crazier than that. Eddie and his planet are just as real as Tom and his Earth, but fifty-some years in the past. And the twins are caught up in an alien master plan that might just mean Earth—both Earths—will be destroyed. Switching places and identities, "slipping" between planets and across decades, a desperate escape, and the unraveling of deeper secrets leave Tom and Eddie aware of the danger they're facing and the tools they can use to overcome it.

Exiled from their home planet, alien heroes Zan and Jayna must navigate life as teens on Earth at South Metropolis High School, where they're even bigger outsiders than the typical awkward young adults. Under the watchful eye of Superman, the brother and sister pull monitor duty at the Hall of Justice as interns, while also trying to overcome the pitfalls of Zan's brash confidence and Jayna's shy but streetwise persona. If you think you know the Wonder Twins, think againÑthis book takes the form of the unexpected.

It’s a murder mystery on the moon in this humorous and suspenseful space adventure from the author of Belly Up and Spy School that The New York Times Book Review called “a delightful and brilliantly constructed middle grade thriller.” Like his fellow lunarnauts—otherwise known as Moonies—living on Moon Base Alpha, twelve-year-old Dashiell Gibson is famous the world over for being one of the first humans to live on the moon. And he’s bored out of his mind. Kids aren’t allowed on the lunar surface, meaning they’re trapped inside the tiny moon base with next to nothing to occupy their time—and the only other kid Dash’s age spends all his time hooked into virtual reality games. Then Moon Base Alpha’s top scientist turns up dead. Dash senses there’s foul play afoot, but no one believes him. Everyone agrees Dr. Holtz went onto the lunar surface without his helmet properly affixed, simple as that. But Dr. Holtz was on the verge of an important new discovery, Dash finds out, and it’s a secret that could change everything for the Moonies—a secret someone just might kill to keep...

They entered the world just five minutes apart, twins swimming out of the womb together, already arguing about who got to lead the way. They grew up together, best friends with rhyming names. They even went to the same college — where one of them had a nervous breakdown, and the other didn't. Grown-up, one of them became a suicidal drunk, the other a success. Now, one is missing, and the other has just three days to find him. It really happened. The History of Swimming details Kim Powers' frantic search for his twin brother Tim who disappears from Manhattan one weekend while in his late 20s. Kim almost mystically imagines that the clues to Tim's whereabouts have been planted in a series of letters written by Tim over the years. Now, Kim uses the letters as a sort of roadmap that takes him to Texas, the setting of their greatest triumphs and tragedies. At the small Texas college where many of these events occurred, Kim falls in with two eccentric traveling companions who guide him on the last leg of his quest, driving through the night to the one final place where Tim might be.