This is the utterly exciting and thrilling sequel to the original Time Riders book. With scarcely time to recover from their first adventures, Liam, the travelling teenager, hears about a major problem occuring in the future he gathers a new support unit to sort it out. Not all goes to plan though, for instead of heading to the future, they are sent 65 million years into the past. Oops! This is probably something they'll regret as the fast-paced action sees them come face to face with a hitherto unknown predator from pre-history. Your imagination will run wild, as did mine, in what is one of the best books I've ever read - and I've read lots!