Time Riders: Day of the Predator, by Alex Scarrow
Maddy, Liam, and Sal are teens who were all rescued from certain death to work for a secret organization, protecting the timeline. When the team investigates an assassination attempt in the future, Liam and a group of students are accidentally transported back sixty-five million years in the past. Circumstances worsen when Liam manages to affect the timeline and send the future into disarray. Now, Maddy and Sal have to figure out when exactly when Liam is stranded and rescue the group before the future is changed beyond hope.
Liam, Maddy, and Sal are a sharp and talented trio thrust into a huge responsibility and left entirely on their own, save for an artificial intelligence. There is never a dull moment here. This Jurassic Park-like sequel is extremely suspenseful, with dangerous predators that are a bit too intelligent. Meanwhile, Maddy and Sal have to deal with mysterious government agents that slow their search for Liam and the others trapped in the past. As each moment seems more complex and the situation more critical, excitement builds to a climactic finish. Don’t miss this action-packed science fiction series for teens and adults alike.
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Time Riders: Day of the Predator is available now in the UK, and will release in the US in October 2011.
I read and enjoyed the first Time Riders book a lot. This definitely a series for teens and adults.
Based on your review I expect another good book in the series.