Robert Ludlum's The Bourne Enigma Book by Eric Van LustbaderPremium Off White Cream Pages Stitched Binding Matte Cover Local Premium Copy Language English Dimensions 5. 5 x 8. 26 inches Pages Amount 378 Summary Robert Ludlum's The Bourne Enigma, written by Eric Van Lustbader, is a thrilling spy novel first published in June 2016. The book is the thirteenth novel in the Jason Bourne series and the tenth written by Lustbader, who continued the franchise after Robert Ludlum's death.