Russian readers met this author when J.-M. Genassia published his first book, “The Club of Incorrigible Optimists,” to which French lyceum students awarded their Prix Goncourt. The Club was followed by The Wonderful Life of Ernesto Che and Deceive Death, which cemented his reputation as a great storyteller. The writer’s new novel, “Waltz of Trees and Sky,” is dedicated to the last days of Vincent van Gogh’s life, when stunning paintings that exploded space and consciousness were created. What really happened in the hot summer in Auvers? Did the artist – “a broad-shouldered, blooming man with a smile on his face” (as Theo Van Gogh’s wife Johanna describes him) – really commit suicide? Jean-Michel Guenassia gives his version of events, where a shy nineteen-year-old girl named Margarita glides like a light shadow. For the first time in Russian!