The secret of secrets

Katherine Solomon has come to Prague to give a lecture, and Robert Langdon has come with her. Then she vanishes from their hotel room without a trace, and the Harvard symbologist finds himself far from home, stalked by something rooted in the city's long, dark past and desperate to find the woman he loves.

Dan Brown's first novel in over eight years puts Prague itself at the centre: vast castles, towering churches, graveyards buried twelve deep and a maze of underground passages, a shadow city that has guarded its secrets for centuries. Langdon's arcane knowledge is all he has to read it, and the stakes climb far beyond a single life. This one is for anyone who likes their thrillers built on real history, old stones and puzzles worth chewing over.