The Abyss Plane, dim and lightless.
Legend has it that not long after mankind colonized the planet Helel during the far-off Prehistoric Golden Age, they began organizing exploration teams for the three great planes and established a wealth of research outposts within them. As a result, many technological documents escaped the Magic Tide that assailed the Main Plane, preserving them by mere luck.
Most of the human scientific data on the Abyss were retrieved during the Third and Fourth Epochs, uncovered by explorers and archaeologists from the Ancient Solomon Empire from within the Abyss.
The universe of the Main Plane has fewer materials and more space. For instance, the radius of planet Helel is just over 6000 kilometers, while the distance from the planet to the sun is 150 million kilometers, a range nearly devoid of material content.
