Philo is finally allowed to visit his grandfather in Mexico! He would be even more excited if he knew he was embarking on an adventure trip to the land of the Aztecs! After Philo forms a friendship with the not always, and certainly not for everyone, visible Togo, the two are led to ancient Mexico. Philo is overwhelmed by life in the past, and when he gets on the trail of a criminal, he experiences the Aztec city from a completely different perspective. This is something for adventurous readers! Mexican history is lovingly and interestingly presented through the experiences of two boys of the same age, living in completely different worlds - by an author who has lived in Mexico. A captivating book!.