Felix Frost, Time Detective: Roman Riddle: Book 1
Eleanor Hawken, Lee Maxwell Simpson, Steve May
Horrible history and spectacular science collide in this action-packed time-travel adventure series for readers 9+.
Reviews

I really like this book because it has detective work and a case to be solved. I really think that this book is great for 9-13 year olds.
Anonymous 04.09.2018

Very interesting
Anonymous 03.08.2018

This book created pictures in my mind that I could visualise and put my mind the town of ancient Rome. This book is on my recommended list for people who need a place to escape to when it comes to history.
Anonymous 02.08.2017