"Dark Lineage" features a series of stories of very different themes, though they share a common core argument. They all paint family pictures where interests and motivations may be overlooked at first glance. Here we find ourselves alongside sisters linked through illness and paternal bonds that are difficult to explain. Isabel Martinez Barquero takes us to the heart of these troubled families, which could be any one of us, with a thorough style and stunning clarity in this powerful narrative.