When Ridge, a time-traveling teenager from the future, gets trapped in 1999, he befriends Michael, a lonely twelve-year-old boy, changing the course of their lives forever.

In the year 2088, the doomsday clock inches towards midnight. The Command, synonymously the World Destroyer, is on the loose. Not even Lamont Cranston, the Shadow's alter ego, knows who he is, but the clock is ticking as people around the world drop dead by the day, with the attack at the World's Fair the most sinister yet. It's up to The Shadow and his band of allies to stop the end of the world.

"Isla has fled the city for small-town Missouri in the wake of a painful and exhausting year. With her chronic anxiety at a fever pitch, the last thing she expects is to meet a genuine romantic prospect. And she doesn't. But she does get a text from a man who seems to think he's her husband. Obviously, a wrong number--except when she points this out, the mystery texter sends back a picture. Of them--on their wedding day. Isla cautiously starts up...

"Ruth McClintock is obsessed with the past. For nearly a decade, she has been studying Annie Oakley, convinced that the legendary sharpshooter experienced a scarring event in adolescence that led her to fight for the right of every American woman to own and operate a gun. This fruitless search has cost Ruth her doctorate, a book deal, and her fiancé. But Ruth may finally have the evidence she is looking for. She has managed to hunt down a journal...

The Axis and Allied forces race to build an atom bomb while a revitalized Soviet Union threatens to unleash a new wave of destruction, and Admiral Kolhammer and his team confront the consequences of disturbing the historical timeline.

"Agent Raibert Kaminski and the crew of the Transtemporal Vehicle Kleio have made a shocking discovery out in the unknown reaches of the multiverse. They've stumbled across a temporal implosion that has claimed two whole universes, and neither Raibert nor his crew can figure out what caused this calamity other than it had something to do with reckless time travel. The Kleio speeds back to their home universe of SysGov with this dire report, but an...

Ranger, the time-traveling golden retriever, has landed in Viking age Iceland, where he helps a girl named Helga journey through the ash and smoke of an erupting volcano to find her father and bring him home.

"Cassie Andrews works in a New York City bookshop, shelving books, making coffee for customers, and living an unassuming, ordinary life. Until the day one of her favorite customers--a lonely yet charming old man--dies right in front of her. Cassie is devastated. She always loved his stories, and now she has nothing to remember him by. Nothing but the last book he was reading. But this is no ordinary book...It is the Book of Doors. Inscribed with enigmatic...

"Mason and Ty were once the very best of friends, like two nerdy sides of the same coin . . . until seventh grade, when Ava Petrakis came along. Now Mason can trace everything bad in his life to that terrible fight they had over the new girl. The one thing he'd give anything for is a do-over. But that can't happen in real life--can it? As a science kid, Mason knows do-overs are impossible, so he can't believe it when he wakes up from a freak accident...

"Time-traveling Librarian spy Irene has faced unimaginable challenges across a multitude of worlds, but to keep her friends safe, Irene will have to do what has never been attempted and cut through the tangled web of power at the heart of the Library. Irene is trying to learn the truth about Alberich-and the possibility that he is her father. When the Library orders her to kill him, and then Alberich himself offers to sign a truce, she has to discover...