TimeJumpers Series by James Valentine

The first and only rule of time travel in the year fifteen billion and seventy-three is simple enough: DON'T TOUCH ANYTHING. Theodore Pine Four is perfectly willing to follow this rule when he wins a contest for the latest TimeMaster JumpMan. If all goes according to plan, this new model should send him -- as an invisible onlooker -- to an exciting time and place for a five-minute test-run... moreThe first and only rule of time travel in the year fifteen billion and seventy-three is simple enough: DON'T TOUCH ANYTHING. Theodore Pine Four is perfectly willing to follow this rule when he wins a contest for the latest TimeMaster JumpMan. If all goes according to plan, this new model should send him -- as an invisible onlooker -- to an exciting time and place for a five-minute test-run. But instead of landing somewhere cool, like the fall of Troy or the sinking of the Titanic, why does he end up in the middle of some girl's bedroom in the twenty-first century, where nothing interesting is happening? And why is he visible?Theo may think nothing interesting is happening, but in that same bedroom, Jules Santorini is very interested in asking Gen Corrigan out on a date. He's nervous enough without a strange boy appearing in the room, claiming to be from the year fifteen billion and seventy-three! Of all times for someone from the future to show up...Can Theo get back to his own time without disintegrating? Will Gen ever go on that date with Jules? And most important, can they set things right without touching anything? less

The Adventure Continues.... Rule One of TimeJumping was broken, but luckily disaster has been averted (at least for now), and Jules, Gen, and Theo are back. Their first adventure had them whisking through Time, talking to coats, and just managing to save Theo's life -- but that was just a warm-up... moreThe Adventure Continues.... Rule One of TimeJumping was broken, but luckily disaster has been averted (at least for now), and Jules, Gen, and Theo are back. Their first adventure had them whisking through Time, talking to coats, and just managing to save Theo's life -- but that was just a warm-up. In the second chapter of the mind-bending TimeJumpers series, Jules and Gen (finally) go on a date, Theo turns out to be the biggest celebrity anyone in the year Fourteen Billion and Seventy-Three has ever seen, and we meet a peculiar and very irritating old man who has the strange idea that the entire history of the world is about to be overturned -- and somehow Jules and Gen are involved. And that's just the beginning. There are sinister forces at work, and Rule One is not just going to be broken, it's going to be smashed apart. less

The Adventure Ends. In the third millennium, Jules is suddenly very popular, for reasons he doesn't really understand. He should be happy, but all he can think about is Theo. Are Jules and Gen ever going to see him again? Meanwhile, in the fifteenth billennium, Quincy Carter One has disappeared after the world witnessed his aborted attempt to undermine the entire structure of Time. Not only that, TimeJumping has been all but outlawed on the Two Planets... moreThe Adventure Ends. In the third millennium, Jules is suddenly very popular, for reasons he doesn't really understand. He should be happy, but all he can think about is Theo. Are Jules and Gen ever going to see him again? Meanwhile, in the fifteenth billennium, Quincy Carter One has disappeared after the world witnessed his aborted attempt to undermine the entire structure of Time. Not only that, TimeJumping has been all but outlawed on the Two Planets. And Theo can't stop worrying about Jules and Gen -- and what Quincy may be planning, wherever (or whenever) he is. It's the thrilling conclusion of the TimeJumpers trilogy, and no one knows what's going to happen next. Or before. But that's what happens when you start fooling around with time. less