The Cynosure n the immediate aftermath of Myrkul's defeat and the ascension of Midnight and Cyric, many Waterdhavians heard the voice of Ao over Mount Waterdeep. Within a month, a marble temple known as the "Temple of the Overgod" was built upon the ruins of Trader's Way (the site of Myrkul's death) with the enthusiastic support of Waterdeep's guilds and noble houses. Many worshipers flocked to the temple, including many nobles intent on following what seemed the latest fashion. Yet, after six months, the temple's flock was reduced by both mortal and divine disinterest. Soon, the temple was empty save for a few sporadic services. In the Year of the Serpent (1359 DR), the Lords of Waterdeep annexed the temple building and put it to use as a public hall, available for rent by nobles and wealthy merchants for parties, balls, weddings, and other events. Now carved into the frieze is "The Cynosure," a name both apt and ironic given the existence of the plane of the same name and the purpose it serves as the meeting place for the gods.
The ground on which the Cynosure was built falls within Myrkul's Ruins, so named for the brown murk that settled on the area after Myrkul's disintegration during the Time of Troubles. Although the Watchful Order of Magists & Protectors cleaned up much of the fall-out of the destruction of the Lord of Bones, Myrkul's Ruins remain the site of a seemingly permanent planar breach, linking Faerûn to the Fugue Plane. The minor planar breach has allowed the Fugue Plane's impeded magic trait (all spells are impeded; Spellcraft DC 20 + level to cast) to leech into this area. As word of this phenomenon has spread, many powerful spellcasters have chosen to hold negotiations in the, as it is seen as relatively "neutral ground" by those skilled in the Art.