Lourdes, a small town at the foothills of the Pyrénées mountain range in southwestern France is one of the world’s most renowned Catholic pilgrimage sites. The water that flows from the mountain spring into the grottos here is supposedly healing, with a reported 7000 cases of miraculous curing. Normally pilgrims drink or bathe in the water, so what happened here? The giant bloody blotch covering the postcard album is ominous to say the least, could it be that some kind of blood cleansing or ritual sacrifice took place?