The Sunken Kingdom is a city that was swallowed by the ocean, thousands of years ago. It is all that remains of one of Thylea’s most powerful and ancient civilizations. The city is the original home of the siren race, and it was once a place of great beauty. But when disaster befell the city, it sank to the floor of the Cerulean Gulf. There are many poems and songs that purport to tell the tale of the city’s destruction. The truth is known to only a few.