The Abyssal Ruins are one of the most mysterious things presented to us by. The Abyssal Ruins believed to be the kingdom of that other brother. In Pacifidlog Town, there is an old man who informs trainers as to when the island is visible. However, many others have had the opportunity to visit the island, and they all attest to the man's credibility.
The solaceon riuns is in solaceon town. Shortly afterwards, a safety mechanism started flooding the Abyssal Ruins, forcing Blake, Whitley, Keldeo, and Keldeo's mentors to escape from it.
While traveling through this area, the ground above slowly dissolved and eroded, causing deposits of clay to fall and form what eventually became the base of the cave. We learn in these ruins of a king who conquered and served as a symbol of hope and future for his people, but we don't know who this hero was or even who he conquered.