Blood and Chocolate — Judith Cranswick

Fiona's tour of Belgium to see the great centres of Flemish Art goes horribly awry when one of her passengers is found dead soon after the assassination of a British MP at a rally outside the European Parliament Building. Could there be a link between the two deaths? Once again, Fiona finds herself at odds with MI6 chief, Peter Montgomery-Jones when she and her party become entangled in his investigation.