The Ruins of Frozen Light is a dungeon in Tales of Legendia. The dungeon is located northwest by The Waterways. Like the name suggest, the ruins are believed to be made out of light in a solid form. The interior of the ruins contain many advanced technological machines. The ruins can be entered three different ways, the main entrance in the front, a secret entrance located on the left from the main entrance, and through underwater passage from the Great Hollow.
After Senel Coolidge and the party failed to save Shirley Fennes in the Waterways, Senel and the others travel to the Ruins of Frozen of Light in order to save her. Vaclav Bolud takes Shirley to the ruins, in hopes he can raise the Bridge of the Legacy. Senel and his party sneak into the ruins, after traveling through submarine from the Great Hollow. While in the ruins, Vaclav sends a Megant to attack the party and they manage to defeat it. After the party defeats the monster, they arrive in the control room and find Shirley trapped in a container. Senel looks closer into the containment area and finds Shirley’s older sister, Stella Telmes, in the machine with her. While attempting to free the two, Vaclav arrives and fights the party, but they are defeated by Vaclav quickly. After losing to Vaclav, he reveals to the party that Shirley is not Senel's real sister and the only relative the Merines has is her older sister Stella. As Vaclav is about to kill Senel, a golden teriques surrounds Senel and opens a escape hatch. The party follows Senel down the hatch and land in the Forest of No Return.
The party returns to the Ruins of Frozen Light during Jay's character quest, after Jay tells the party that the ruins are a hideout for Solon's ninjas. Jay leads the party into a control room in the ruins and tells Shirley to come read a command in Relares. Jay releases a switch and traps the party in a cage of electricity. Jay knocks out Shirley and takes her with him. After the party escapes from the cage, Dullahan appears and attacks them. After defeating the monster, the party leaves the ruins and head to the Oresoren Village in hopes of finding Jay.
- Advancing Towards 12 O'Clock is the location theme for the Ruins of Frozen Light. The track can be found in the original soundtrack as Track 23, and is composed by Go Shiina.