Glevum, AD 188, Libertus, one time slave, now a citizen of the Roman Empire and solver of mysteries for his patron Marcus Septimus, is feeling extremely sorry for himself. He is on his sick bed and feeling weak a dizzy. The only good thing is that he is being attended to by his dear wife, only recently returned to him from a life of slavery. When his patron Marcus forces his way in imploring everyone to allow him to speak with Libertus, the sickly pavement-maker knows that something is wrong. Although Marcus is not always sensitive to the needs of others, his noble upbringing would not allow him to burst in upon a sick man without prior notice.
Libertus is not wrong, Marcus's wife and their baby boy have disappeared without trace and now a note has arrived. Unless Marcus uses his power as a senior magistrate to obtain the release of a certain prisoner, he will never see his family alive again. Libertus is well aware of the situation this puts Marcus in. Although he is a strict law enforcer he has always been fair and above any bribery or corruption that may come his way. But if he gives in to the kidnappers his reputation will be in tatters. But is his reputation worth the lives of his wife and son. Little does Libertus know, but he himself has also made a powerful enemy. To be able to help his master he must first help himself.