Alex Scarrow 
TimeRiders: Day of the Predator (Book 2) [EPUB ebook] 

Liam O’Connor should have died at sea in 1912. Maddy Carter should have died on a plane in 2010.Sal Vikram should have died in a fire in 2029.But all three have been given a second chance — to work for an agency that no-one knows exists. Its purpose — to prevent time travel destroying history . . .When Maddy mistakenly opens a time window where and when she shouldn’t have, Liam is marooned sixty-five million years ago in the hunting ground of a deadly — and until now — undiscovered species of predator.Can Liam make contact with Maddy and Sal before he’s torn to pieces by dinosaurs — and without endangering history so much that the world is overtaken by a terrifying new reality?