This was a charming Roman adventure, with a pair of friends travelling across the world together attempting to translate ancient texts and contemplate astronomy, science and legends to uncover an ancient mystery of the stars. 
On their adventures they come under attack, distract enemies with creative inventions, make new allies, meet royalty, and grow closer together.
It's a delightful historical adventure with a touch of political drama, action, mystery and a building romance, and takes you back in time to experience their immersive journey. 
Hero and Lucia are characters you can't help but root for, and I enjoyed the cultural education aspects and the attention to detail.