In the second of the series, Spirals of Time, time-travelling twins, Tara and David, continue their quest to save Planet Earth, accompanied by Bethan, the puppy, and Simone, their reluctant cousin. The next gripping adventure begins as the four are transported back to 79 AD. They find themselves in a hillfort with the Silures tribe who are under threat from the might of the Roman army. Only the children can save...