Henry thinks he's done with time travel. He's also fed up with his little sister and wants a break. But then he finds himself sent back to Ancient Rome, living with a family whose back-stabbing and revenge plots bring a whole new meaning to the phrase sibling rivalry. School has never been weirder or more exciting. Together with his new friends, Henry manages to save the Emperor and restore harmony to the household and realise that life in the twenty-first century might not be so bad after all!