Sabrina, born on Friday 15th November 1996, is a beautiful girl with brown eyes and black hair.On 4th July 2016, at the age of 19, she went to play in the playground of her city with Sophie, Mia and Christina. While playing, they discover a mysterious airplane hidden in the bushes.Then airplane magically traveling in time from Adelaide, across the Aegean Sea, Greece, Bari and Naples, will bring the four friends in the ancient imperial Rome.Will Sabrina, with the help of her friends and this personalized guide book, solve «the riddle of the Colosseum» and reveal «the seven mysteries of the Eternal City»?