But when Charlotte's scientist father makes an astonishing discovery that the Germans will covet for themselves, Charlotte is faced with an impossible choice between danger and safety. Should she remain with her friend or journey to another time and place? Her split-second decision has huge consequences, and when she finds herself alone in the world, unsure of Kitty's fate, she knows that somehow, some way, she must find her way back to her friend. Written in the spirit of classic time-travel tales, this book is an imaginative and heartfelt tribute to the unbreakable ties of friendship.

    Left in the care of the cruel Miss Slighcarp, the girls can hardly believe what is happening to their once happy home. The servants are dismissed, the furniture is sold, and Bonnie and Sylvia are sent to a prison-like orphan school. It seems as if the endless hours of drudgery will never cease.With the help of Simon the gooseboy and his flock, they escape. But how will they ever get Willoughby Chase free from the clutches of the evil Miss Slighcarp?

    Soon he finds himself below the bustling streets of Brooklyn, deep within the untamed tangles of transit tunnels, and in Atlantia, a glorious utopian rat civilization.But all is not what it seems. Though Hopper is treated as a royal guest, he misses his siblings that he lost in the escape attempt. That, and Atlantia is constantly threatened by the rebels who wish to bring the city to its knees. And there are cats everywhere in Atlantia, cats that leave the citizens unharmed and no one can seem to answer why.Soon, Hopper is caught in the crosshairs of a colossal battle, one that crosses generations and species. As the clashes rage, Hopper learns terrible, extraordinary secrets: Deadly secrets about Atlantia. Painful secrets about his friends.And one powerful secret about his destiny.

    Once when he was thirty nine and again four years later when he was twelve.The first time had nothing to do with me. The second time definitely did, but I would never even have been there if it hadn’t been for his ‘time machine’…”When Al Chaudhury discovers his late dad’s time machine, he finds that going back to the 1980s requires daring and imagination. It also requires lies, theft, burglary, and setting his school on fire. All without losing his pet hamster, Alan Shearer…

    A reactor at the nuclear power plant where their fathers work--Chernobyl--has exploded. Before they know it, the two girls, who've always been enemies, find themselves on a train bound for Leningrad to stay with Valentina's estranged grandmother, Rita Grigorievna. In 1941 Rifka must flee Kiev before the Germans arrive. Her journey is harrowing and fraught with danger because Germans and Russians alike will revile her for her Jewish blood.In both time periods, the girls must learn who to trust and how to have hope in the midst of horrible events.

    Clair is going to be a lawyer. She was the fastest girl in New York City. She knows everything there is to know about the brain. And now that she’s living in Crow, Iowa, she wants to ride into her first day of school on a cow named Willowdale Princess Deon Dawn. But Gwyn isn’t in Crow, Iowa, just for royal cows. Her family has moved there, where her parents grew up, in the hopes of jogging her mother Vienna’s memory. Vienna has been suffering from memory loss since Gwyn was four. She can no longer remember anything past the age of thirteen, not even that she has two young daughters. Gwyn’s father is obsessed with finding out everything he can to help his wife, but Gwyn’s focused on problems that seem a little more within her reach. Like proving that the very strange Gaysie Cutter who lives next door is behind the disappearance of her only friend, Wilbur Truesdale. Gwyn is sure she can crack the case, but when she does she finds that not all of her investigations lead her to the places she would have expected. In fact they might just lead her to learn about the mother she’s been doing her best to forget.

    Finn Whitman and four other teens have been hired as Disney World guides, but with an odd twist: With cutting-edge technology, they have been transformed into hologram projections capable of leading guests around the park. What begins as an exciting theme park job turns into a virtual nightmare as Finn and his pals attempt to thwart an uprising by a menacing group of Disney villains.