Over sixty years ago, poet, playwright, and critic John Igo stumbled upon a curious reference to a vanished local literary legend. A brilliant former student at a San Antonio community college, forgotten by none who met him, had gone on to the famed Black Mountain College in the 1930s, and achieved his dream of becoming a staff writer for The New Yorker. And then he vanished. Coincidence and curiosity morphed into an obsession for Igo: Who was Mendez...