In the third novel in the series, Topher and his cat Ka go back in time to Ancient Rome. Topher is settling into a new life in Chichester, a city with ancient Roman links. He finds a tile with an ancient cat's pawprint on it. Then he meets up with Marcus, the son of Cassius the tilemaker.
As with the two previous Time-travelling cat novels, there are two strands to this. In the contemporary part of the novel, Topher is settling into a new life in Chichester, a city with ancient Roman links. He becomes fascinated by a tile from Ancient Rome he sees in a museum which has a cat's footprint on it. [factually accurate, it's in Reading Museum]. But he's being bullied at school by a boy who used to live in the house that Topher's parents have bought. In the timeslip element of the story, Topher meets up with Marcus, the son of Cassius the tilemaker and he discovers that it is, in fact, the time-travelling cat's pawprint on the tile. Marcus's elder brother is a bully and it is he who steals the symbol of power of the Roman Army - the eagle. Marcus and Topher have to get it back...before Topher can return to his own time.