Time Travel Diaries: Adventure in Athens by Caroline Lawrence
Alex and his friend Dinu vowed never to time-travel again . . . But now it's summer and Alex and Dinu have been offered a luxury summer holiday in Athens. After a rooftop banquet the evening they arrive, everyone gets food poisoning and is told not to eat for 48 hours. When Alex and Dinu feel better, they decide to stretch their legs. But the moment they step out of the hotel, their limo pulls up with their dangerous mentor Solomon Daisy who now has a new mission for them. He wants them to go back to the 'Golden Age of Athens' - to a time when Socrates was alive and when Athens was at peace with Sparta. The second book in Caroline Lawrence's gripping new time-travel series.