 The existence of this third world also complicates security expectations, as it provides an angle to attack the Clan from locations which might seem safely guarded in both worlds, but are unguarded in the third world.In "The Hidden Family", Miriam correctly hypothesizes that the Clan civil war that took place around the time she was born was caused and intensified by a third party – a distant branch of the Clan that, while weaker, was unknown and had access to a different world.They were thus able to perform attacks that seemed as if they must come from a rival world-walker within the Clan, but actually came from the Hidden Family.