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When five present-day teenagers known as the Kingdom Keepers find themselves thrown into a past that would make anyone envious, things don't exactly work out the way they'd hoped. Finn, Charlene, Maybeck, Willa, and Philby open a door into a place and a time when the legend of the Disney parks is just starting. They are there, in 1955, to retrieve Walt Disney's infamous pen that once saved the parks as we know them. But like all things Disney, nothing is as it seems.

When we last saw George and Harold, they were headed to jail for the rest of their lives. What could be worse? How about being pulled from prison by a time-traveling tyrant named Tippy Tinkletrousers?!!? Now the boys are taking a trip back in time to the carefree days of kindergarten, when the scariest thing they had to face was not evil mad scientists or alien cafeteria ladies but a sixth-grade bully named Kipper Krupp, the nephew of their clueless school principal.

Henry, Frances, and Lukas are neighbors, and they used to be best friends. But in middle school Frances got emo, Lukas went to private school, and Henry just felt left behind. When they come together again for the funeral of a pet gerbil, the three ex-friends make a mind-blowing discovery: a radio, buried in Henry’s backyard, that allows them to talk to another group of kids in the same town...in the same backyard...eighty years in the past.

The Timekeepers is a secret organization of kids that keeps the course of history on track—and history needs them—a villain named DeLay is causing chaos! When the hands on their watches start to spin backward, the Timekeepers know that DeLay has been up to no good, and it’s up to them to put things right…

Mason lives in 2023. His parents have just split up, and there's a guy at school who won't get off his case. As part of an assignment, he writes a letter to Albert Einstein and it ends up getting a little too personal. He throws the letter into his closet … and the next day he gets a letter back from a girl named Talia, who lives in 1987. She has problems of her own, including classmates who make jokes because she's Jewish. She thought her friends would have her back. But it ends up the only person she really has to talk to is … a random boy from the future?

When best friends Dak Smyth and Sera Froste stumble upon the secret of time travel - a hand-held device known as the Infinity Ring - they're swept up in a centuries-long secret war for the fate of mankind. Recruited by the Hystorians, a secret society that dates back to Aristotle, the kids learn that history has gone disastrously off course. Now it's up to Dak, Sera, and teenage Hystorian-in-training Riq to travel back in time to fix the Great Breaks . . . and to save Dak's missing parents while they're at it.

Regan Fitz and Elliot Mason have been enemies since they started training to become Glitchers - people who travel through time to preserve important historical events. But everything changes when they find a letter from Regan’s future self, warning them about an impending disaster that threatens them and everyone they know.

Jonah and Katherine journey to 1918 with the Romanov children in the sixth tale of the New York Times best-selling The Missing series. It's a paradox: When Jonah and Katherine find themselves on a mission to return Alexei and Anastasia Romanov to history and then save them from the Russian Revolution, they are at a loss. Because, in their own time, the bones of Alexei and Anastasia have been positively identified through DNA testing. What hope do they have of saving Alexis and Anastasia's lives when the twenty-first century has proof of their deaths?

In this explosive third installment of New York Times bestselling author Dan Gutman’s action-packed series, four thrill-seeking friends travel back in time to document one of the most devastating natural disasters the world has ever seen.

Winner of the National Jewish Book Award and an American Bookseller "Pick of the Lists", The Devil's Arithmetic plunges the listener into the terrible realities of the Nazi concentration camps. Chaya's tale is a celebration of the strength of the human spirit and a dramatic introduction to the darkest period of modern history.

Otto and Sheed are the local sleuths in their zany Virginia town, masters of unraveling mischief using their unmatched powers of deduction. And as the summer winds down and the first day of school looms, the boys are craving just a little bit more time for fun, even as they bicker over what kind of fun they want to have. That is, until a mysterious man appears with a camera that literally freezes time.

How did Joe, Fred, and Sam end up in King Arthur's court? It all started with The Book, a present from Joe's magician uncle. One minute they were looking at pictures of knights in The Book - and the next minute they are knights, battling fire-breathing dragons and gross-smelling giants! Can the Time Warp Trio escape death and destruction - and make it back to the twentieth century in time for lunch?

News alert! It has just been discovered that there are NO MORE TACOS left anywhere in the world. This is a huge problem because, as you know, dragons love tacos. If only there was a way for the dragons to travel back in time, to before tacos went extinct. Then they could grab lots of tacos and bring them back! It’s the perfect plan, as long as there’s no spicy salsa. You remember what happened last time....

One minute Qwerty Stevens is researching a last-minute report on the internet, and the next minute Benjamin Franklin is sitting on his bed! Thanks to the Anytime Anywhere Machine hooked up to his computer, Qwerty has snatched Franklin from July 4, 1776, the very day the Declaration of Independence was signed. Qwerty and his best friend, Joe, realize they have to get Franklin back in time for the signing, and they can't resist seeing it with their own eyes. Can the boys make sure the Declaration gets signed like history says it should? And can they make it back home?

Life used to be great for Rose: full of friends, a loving mom, and a growing fashion blog. But when her mother dies in a car crash, Rose is sent away to live with a strange grandmother she hardly knows and forced to attend a new school where mean girls ridicule her at every turn. The only place Rose finds refuge is in her grandmother’s greenhouse. But one night, she sees a strange light glowing from within it. She goes to investigate...and finds herself transported back 500 years to Hatfield Palace.

Arabella’s life was boring until strange things began to happen to her. One day, she is out eating pizza and then suddenly she finds herself with her brother, Tom, in the middle of the Great Siege of Malta in 1565 when the Knights of St. John showed great courage and fortitude in fighting off an invasion from the Turkish Empire. Will they join Grandmaster Valette in battle?

Zoe knows that the only thing harder than middle school is losing a best friend. She and Laura used to do everything together from taking silly selfies, to joining all the same clubs together and even throwing surprise birthday parties for one another.

Liam Chapman cannot believe his good fortune. He just bought a real, working time machine at a garage sale for $3. Sure, it’s labeled “World’s Worst Time Machine,” but how bad could it be? The time machine, as it turns out, is so much worse than Liam could have imagined. First, it summons Thomas Edison, but not that Thomas Edison. This Thomas Edison is a 10-year-old aspiring gangster from 1933 who demands to be called “Tommy Twinkles” and is also very interested in robbing a bank of the future.

Nationally syndicated radio talk show host Rush Limbaugh has long wanted to make history come to life for the children of his listeners. In this book, he travels back in time with fearless history teacher Rush Revere. With the help of his faithful talking horse, Liberty, Rush experiences American history as it happens, having adventure after adventure with exceptional Americans such as Paul Revere and George Washington.

With the defeat of the Overtakers behind them, the five teenagers known as the Kingdom Keepers should be celebrating. By all accounts they saved Disneyland from certain destruction. Why then did their mentor leave one last puzzle for them to decipher? The Keepers must solve a puzzle of the past, or be crushed under an evil that makes the Overtakers seem like gentle souls.