Saint-Sauver, home to Richard Ainsworth and Valérie d’Orçay’s detective agency, is celebrating the 25th anniversary of its town twinning with Anglethorp Spa in Lincolnshire.

Events are planned, a huge brocante, street parties and the centrepiece, an exhibition boules tournament between the two towns and a team of international boules all-stars. Everything is going well, the sun shines, the wine flows and the entente is very cordiale.

Until the mayor turns up dead in an antique dresser having apparently been killed twice. Inevitably Richard and Valérie have very different views on the subject and engage in their own battle: who will solve the crime first?