1Leslie Ferris Yerger, a Stage IV breast cancer thriver, shares the story of her diagnosis, her breast cancer completely invisible on mammography and ultrasound, and her determination to educate women about supplemental breast cancer screening "€" so that her story doesn't become their story. Using metaphor found on the ancient pilgrimage, El Camino de Santiago in Spain, Leslie takes you on her journey from pain and grief to gratitude and action as she traverses 500 miles across northern Spain on foot.