Ruins of Corinth

History
The Ruins of Corinth is where all of the knowledge of Vorel Vur Korth was discovered when Outsiders started exploring this region. Corinth, the Dragon who was curious-minded and sought to understand the great mysteries in life, kept all of his knowledge stored here. Knowledge was his gold, his treasure, and he hoarded it, and ran arcane experiments here as well. Many people come here to find knowledge of the arcane and of this region, but the experiment that ripped apart the boundaries between the planes was also centered here, and now it's the epicenter of the cracks between the planes once again, presenting dangers and mysteries that no sane person would go against alone.

What mysteries lie within - and beneath - these Ruins?