In Times Like These (In Times Like These, #1)

ASIN moved from less recent edition here

"We broke something. How do you break time? Can something so bad happen that you fracture the world?" Benjamin Travers has been electrocuted. What's worse, he and his friends have woken up in the past. As the friends search for a way home, they realize they're not alone. There are other time travelers, and some of them are turning up dead. When Ben meets an enigmatic scientist and his charming, time-traveling daughter, salvation seems at hand, but escaping the dangers of the past may lead to a deadly future. If he hopes to save his friends, Ben must learn to master space and time, and survive a journey where past and future violently collide.