Whilst this series acts as a continuation of the Roman Mysteries it feels fresh. Thanks in large part to a new dynamic and location - siblings rather than friends and Britain rather than Italy. 

The short chapters and plot driven narrative make for an action packed and tense story. Each chapter contains information on Roman history - whether it be what a necropolis is or information on Roman culture - seamlessly blending fictional and non-fictional elements without detracting from the narrative and feeling like lesson. 

Lawrence does not shy away from the harsh reality of Roman Italy and Britain which leads to some emotional and distressing scenes that will prompt conversation whilst still remaining appropriate for the target audience. It was also great to see a an accurate not caricature/stereotypical depiction of OCD (thought it was not named as such due to the historical context). Whilst the character was somewhat infantilised this was by other characters not the author and the character was able to flourish and show their strength. Even better is that the character growth did not equal a cure for their condition showing that people experiencing active symptoms/displays of their mental health conditions are still capable. 

My only criticism is that more time spent on the siblings actions/personalities pre their journey would have allowed for more impactful character development.