In 2011, the letters of Blessed Zélie and Louis Martin were published in English as "A Call to a Deeper Love: The Family Correspondence of the Parents of Saint Therese of the Child Jesus, 1863–1885". On 7 January 2013, in Valencia, Spain, the diocesan process opened to examine a "presumed miracle" attributed to their intercession: the healing of a newborn girl, Carmen Pérez Pons, who was born prematurely four days after their beatification and who inexplicably recovered from severe bleeding of the brain and other complications.