Of the blood. The Na’fhuil, or Fae halfbloods, are direct descendants of a Sídhe lord’s or lady’s human offspring. All Na’fhuil carry recessive Fae genes, but only a few are born with the mutated version and have the active magic of either a Jumper or Walker. Halfbloods were hunted throughout history for their unique abilities and forced into hiding to avoid capture, resulting in the belief by most of the world that they are now extinct. Abigail MacCarthy and Conlan MacCarthy are Na’fhuil.