In 1915, arriving in New York, Marcel Duchamp painted a private response to Nude Descending a Staircase and the 1913 scandal—a work that re‑casts the drama of the Nude and anticipates the logic of his early readymades. Long assumed to be fictitious, Tulip Hysteria Co‑ordinating emerges in this study as a real, identifiable painting whose motifs are recycled in Fountain, its title, and the anecdotes around it.

By following this missing work through to Étant donnés, the book uncovers a concealed narrative that rearranges everything we think we know about the sequence of Duchamp’s New York period.

This Book Uncovers the Rest.