**First Appearance:** #book7 A dusty nebula about ten light-years spinward of the first of the star systems claimed by Unity. Described as being a pillar-shaped pall of dust and gas about twelve lightyears long, with a thickening at its midpoint, vaguely suggestive of two shorter, perpendicular arms, hence its name. It glows with the emissions from some hot young blue stars buried deep inside it, but little is known about it otherwise.