Death on the Danube: A fast-paced psychological thriller

A dream vacation. A perfect anniversary. A killer hiding in plain sight.

When Derek and Brianna Murphy set off on a romantic river cruise from Passau to Budapest to celebrate twenty-five years of marriage, they expect historic cities, candlelit dinners, and a much-needed reconnection. What they don't expect is the instant bond they form with two other couples-strangers who, over shared excursions and late-night conversations, begin to feel like lifelong friends.

But friendships forged on calm...