"Tim and his best friends Tito and Oskar, the time-traveling T-Rex, battle the evil Weremoles--an army of hungry, sharp-toothed rock-munchers who are out to destroy their fair city of Metrosalis! Will Tim's worrying superpower help them defeat the underground monsters, or is doomsday just a worry away?"--

"At some time in the future, the secret of time-travel became available to all. Chaos ensued as people sought to take advantage. Because there will always be nutters who want to change history... And so the Time Police were formed. Internationally sanctioned thugs whose task it was to keep the timeline straight by any and all means possible. And they succeeded. The Time Wars are over. The Time Police won. But who will win the peace? Doing Time follows...

Travel through time to the world of the dinosaurs in this exciting prehistoric fiction series for children. Jamie has just moved to Ammonite Bay, a stretch of coastline famed for its fossils. He’s a member of the Dinosaur Club--a network of kids around the world who share dinosaur knowledge, help each other identify fossils, post new dino discoveries, and talk about all things prehistoric.In this adventure, Jamie and Tess come across a diplodocus...

"Shona McMonagle is your ordinary, garden-variety librarian: comfortably padded, in her middle years, expert in various arcane martial arts. She also has an impressive knack for time travel ("impressive" may be overstating things: her first two forays - revolutionary Russia, 19th-century France - went less than smoothly). Her latest mission? Head to 11th-century Scotland, cozy up to Macbeth and Lady M, prevent them from murdering Duncan. In the ordinary...

A collection of 16 time-travel stories by the science fiction master originally published 1956-2007, with a 2018 introduction by the author.

"A locked-room murder mystery set at a hotel for time travelers--in which a detective must solve an impossible crime before her own grip on reality crumbles--from the author of The Warehouse On any ordinary day, the Fairbanks--affectionately known to its staff as the Paradox Hotel--is packed with ultra-rich tourists dressed for a dozen different time periods, all anxiously waiting to catch their "flights" to the past. And as if that weren't strange...

"Jack and Annie are magically transported to mid-1800's Thebes where they are saved from a dangerous accident by Florence Nightingale!"--

Schoolmates Eric, Dominique, Ajay, and Josephine are in their homes getting ready for a normal school day after two successful time-travel adventures. But the day might not turn out to be so normal after all! The kids' parents remind them that today is Coronation Day, and when they get to school, they find the Pledge of Allegiance replaced with an Oath to the King. Clearly, something is amiss, and the only way to fix it is to return to the Smithsonian,...

"Trapped in a dead-end town, Justin Warren has had his life defined by the suspicious deaths of his grandparents. The unsolved crime happened long before Justin was born, but the ripple effects are still felt after thirty-eight years. Justin always knew he wouldn't have much of a future. He just never imagined that his life might take him backward. In a cosmic twist of fate, Justin's choices send him crashing into the path of determined optimist Rose...

"In 1986, renowned nuclear scientist Anna Berkov is sleeping in her bed in the Soviet Union when Chernobyl's reactor melts down. At that exact moment she tears through time--her first jump--and it's an accident. When she opens her eyes, she's landed in 1992 only to discover Molly, her estranged daughter, shot in the chest. Molly, with her dying breath, begs Anna to go back in time and stop the disaster, to save Molly's daughter Raisa, and put their...