What is the Shadow archetype and how does it form in a family?

Kris Kluver, in The Dysfunctional Family Office, names the Shadow as the invisible rising-gen archetype. The Shadow has always been around but is not seen. Their contributions go unnoticed. Their opinions go unasked. They often have valuable perspective but have learned that speaking up doesn't matter. The pattern usually forms in families with a dominant Center of the Universe or Visionary founder, where there's no oxygen left for anyone else in the room. The Shadow doesn't lack ability. They lack space. After enough years of being talked over or ignored, they stop volunteering. They become quiet. They eventually opt out of the family enterprise entirely, sometimes physically leaving. The damage is real and often invisible until the Shadow disappears. The fix is structural. Restructure family meetings so the Shadow has to be heard. Round-robin contributions. Smaller groups. Time without the dominant family member in the room. Once the Shadow's voice has space, the contributions usually surprise everyone.