After drug smugglers and illegal arms dealers, this final book in the Missing Dad series sees the young protagonists tackling the odious trade of human trafficking. In Book 7: WINGS, the victims are unknowing passengers aboard the Golden Venus cruise liner - heading for slavery instead of sunshine.

The youngsters are paying the price of their previous successes against international crime, with Tommaso having to go into permanent hiding in India, where he continues to hack into criminal networks. And they are also making career decisions, with Becks heading for Cambridge to study law. At Monsieur’s suggestion, Joe takes flying lessons and discovers a passion for being in the air. Arnaud and Talia return home to plan their wedding and their new career - running a children’s home in the new Chateau de Montaubon that is rising from the ruins of the old one, helped by Monsieur and Joe’s father and mother.

Towards the denouement, Joe makes a discovery about his father’s past that transforms his previously ambiguous feelings. But only after being incarcerated utterly without hope - the price of waging war on international crime.