“What I love about Robert Landori’s thrillers are the details he brings to his settings. Landori, who speaks seven languages and has lived all over the world, draws on his personal knowledge of places like Zurich and Budapest and the Caribbean. The excitement of his plot line is anchored in details of place and custom and culture, making his stories as much a travelogue as they are page-turner thrillers. Four Equations also draws on Landori’s knowledge of high finance as his hero unravels the dastardly doings of a couple of greedy Swiss bankers.”