The newest novel by a self-described daughter of the borderlands, Norma Elia Cantú , isn’t a memoir or autobiography, even though it draws on her own personal experiences. “ Cabañuelas ” documents Cantú’s young adult life when she sets off to Spain in 1980 to study the country’s culture — specifically, its fiestas. Cantú reflects on Spanish traditions and compares it to South Texas communities that were conquered by Europeans centuries ago.