In the second instalment of The K-Twelve Legacy Series, following on from the original Fallon: Non Est Optio Defectum, Jonathan Fallon is in semi-retirement, enjoying becoming both a husband and a father. However, his idyllic world is soon shattered after an encounter at his local pub turns violent and the perpetrator wreaks his vengeance on Fallon by kidnapping his wife and young son after ambushing the family whilst they were out walking.

Leaving Fallon for dead, Lukas Falcone takes his 'prize' home with him to Kalander Island, which is owned by his father, industrialist Alexandre Falcone. Jonathan Fallon must use all his skills to recover his wife and son as well as solving the unanswered question left over from the original novel: who financed the Riga affair in Egypt?

In a plot that twists and turns and drips with revenge, a mysterious hitman arrives on the island, summoned there by Falcone senior to deal with the Fallon problem. Who is this Louis Serpens and where does he fit into this complicated chess game of move and countermove? And just how far will Agent K-Twelve go to save his family?

After all, Familia Super Omnia - Family Above All.