SCOTCH PLAINS – For many decades the work of a distinguished Latin American artist lay hidden beneath the wallpaper in a cottage in Feltville—Union County’s “Deserted Village. Eventually uncovered by volunteer maintenance workers, the colorful images depicting rural Mexican life displayed a compelling talent. Extensive research revealed them to be the work of Roberto de la Selva, a native of Nicaragua. De la Selva would go on to become renowned as a bas relief sculptor in wood, working as part of the movement known as Mexican Modernism in which artists such as Diego Rivera and José Clemente Orozco celebrated post-Revolution social reform and the heritage of indigenous cultures.