Before traveling to the Sunken Kingdom, the party will need a map to its location. Pyrrha, a Siren Spellsinger (appendix B) from Aresia, has long possessed just such a map. She attends to Narsus in the Chamber of Beauty (area A6). Refer to the Audience with Narsus for details. Once the party has obtained the map, they can set out on an expedition to find the Sunken Kingdom. They will need a crewed ship and some means by which to explore underwater for long periods of time. Aketa at the Merchant Headquarters (area A21) in Aresia is willing to provide magic and equipment to assist with the quest. Versi, the Oracle, is also more than willing to assist, as she has long been curious about the Sunken Kingdom. Here is an overview of this chapter:

• The Sunken Kingdom. The party must sail to the location of the Sunken Kingdom, anchor the ship, and dive to the ocean floor. They must speak with the merfolk in the ruins of the city to learn the location of the Promethean Fire (appendix C). The merfolk are fighting a war against a terrifying merrow tribe.

• The Temple District. The party must investigate this ruined district, where a pantheon of long-forgotten gods have been sealed away. They tell the party the story of Phaeros, an angelic being who carries the Promethean Fire. He and the artifact were swallowed by Scylla thousands of years ago.

• The Chasm. The party must descend into the darkest fathoms of this ancient trench in order to destroy Scylla and rescue Phaeros. But Phaeros has gone mad after spending thousands of years trapped in the belly of the beast. The party must defeat him to recover the Promethean Fire.