The Great Lighthouse stands as a celebrated beacon on Silk Bay, a monument of deep historical significance for the region. Publicly, it is known as a marvel of engineering, famously built by the first settlers of Coia to guide ships safely through treacherous waters. Its towering presence and steady light have been a symbol of hope and guidance for generations.

However, the lighthouse harbors a profound secret, its true purpose carefully guarded by a long line of solitary keepers. Far more than just a navigational aid, the Great Lighthouse is, in fact, a massive arcane ward of immense power. Its very structure and rhythmic light serve a far more critical function than mere guidance.

The rhythmic beam emitted by the lighthouse is a precisely focused energy, designed to reinforce and maintain a powerful magical seal on nearby Stonewatch Island. Below its publicly accessible levels, the long-dormant lower sections conceal containment chambers and access tunnels leading to ancient, complex machinery—all integral to its hidden purpose.

A grave crisis now afflicts the lighthouse, threatening its ancient design. The magical seal on Stonewatch Island has been broken by the Lich Ariel, causing the arcane ward to fail. Planar energies are now seeping out uncontrollably, and these powerful forces are binding its current keeper, Quillon Raadow, to the lighthouse's service. The Great Lighthouse continues to function, but it does so under a growing shadow of impending collapse.