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The second diary of Ulysses Moore has finally been deciphered! It was not an easy task, because the old owner of Villa Argo seems to have deliberately mixed up all the cards and prepared even more difficult puzzles.... After opening the secret door, Jason, Julia and Rick find a ship that can travel through time. They head to Ancient Egypt, where they will find secret labyrinths, new friends, dangerous enemies and, of course, extremely difficult tasks and puzzles. But who sent them back in time and why? And what is so securely hidden in a place that has long since ceased to exist?