The Crystal Moonwell is one of five gem artifacts protected by the remnants of the Ruby Court of Sardior. The items have an intimate connection to the Eros an ancient crystal dragon, who is said to have perhaps forged the item for use in the court. .
History
It was rediscovered by the realm when a troop of followers of Eros, known as the Lunarans, operating out of an abandoned holy site known as Rana Ndore. Under the Lunarans, the moonwell was protected for ages under the watchful eye of Echemus, a crystal dragon and descendant of Eros himself, and by the Crying Scryer, a lunaran who could see prophecies of what was to come.
In 825 PR the scryer foresaw great disasters in the north, and asked a visiting troupe of heroes to take the Moonwell with them. It was brought south and stored in the city of Seglock, where it could protect the city from dragons, and be out of the reach of The One That Waits. It was also used the following year in 826 PR during The Umbral Flood to protect the city of Seglock from Shadow Sickness.
It was moved to the Northern Snowy Mountains during the events of The Battle of Five Lights, where it channeled the full power of the crystal seat of Sardior, and when its energies were combined with the other artifacts, ultimately empowered Sardior to take form once more.
After the ceremony, the old artifacts of the court lost their divine significance, replaced with items of importance to the new members of the court. However, due to Echemus' longstanding protection of the well, and it having belonged to his father, it is believed that the Crystal Moonwell kept its position as one of the five artifacts of the court.
About
The Moonwell must be activated under the light of a full moon. At the apogee of the evening (when the moon is at its highest) the solid stone inside the well begins to bubble and melt into a strange crystalline liquid. The liquid can be used to purify the effects of corruption and darkness, but more importantly, the well itself can be activated to create a force field of dragon-antipathic energies, which ward off any true dragons from entering a mile radius.
It's theorized this purpose was used to create exclusive, impenetrable chambers in which the powers of the Ruby Court could meet in peace and confidentiality.