Fires of Alexandria — Thomas K. Carpenter

The greatest mystery of the ancient world remains the identity of who set fire to the Great Library in Alexandria. One hundred years later, Heron of Alexandria -- the city's most renown inventor and creator of Temple miracles -- receives coin from a mysterious patron to investigate the crime. Desperate to be free of the debts incurred by her twin brother, she accepts and sets in motion a chain of events that will shake the Roman Empire and change the course of history forever.