The fourth Roman Mystery takes the friends to Rome on a dangerous assignment as Jonathan grapples with guilt and anger.

Jonathan goes on a secret quest to Rome, and Flavia, Nubia and Lupus set out to find him. Their dangerous mission takes them to the Golden House of Nero where a deadly assassin is rumoured to be at work - and they learn what happened to Jonathan's family during the terrible destruction of Jerusalem nine years earlier.

"I enjoyed this book a lot - it won me over early on with a dream that made use of Penelope's loom, combining some of my favourite themes! And Flavia describing the under-construction Colosseum as 'colossal' made me smile (and yes, the author's note at the back makes clear that the name comes from the statue, not the amphitheatre itself, but Flavia doesn't know that!)." - Pop Classicist Juliette Harrison