The Plekenergia

The Plekenergia (pronounced Plek-en-er-gee-ah by common speakers) is the ancient word for the energy network that the K'Thonim built worldwide. When the K'Thonim were harvesting from this world, they built a series of towers that connected and traded the magical forces from one place to another. These towers were mostly wrecked around the world with the events of the The Great Darkening. In Europa the The Antikathonum ensured that the towers were torn down stone by stone, however other parts of the world this is not the case. In fact, expeditions to Africanus and the Empire of the Phoinix have found towers that were mostly intact, enough that they can detail the size of the staff involved.
These towers linked other facilities that were built for harvesting the T'Shole from the peoples of the world. During the Great Darkening, the freed slaves usually ran roughshod over the ruins, wrecking whatever they could of the hated place and killing any surviving "trustees."  Regardless of its condition, the Plekenergia is regarded by all to be a horrific piece of the past.
Recent expeditions to Atlantica have found that in many cases the opposite is true. K'Thonim worshipers prevailed, perhaps in hopes that their masters would return. Most of the ruins are just that, completely ruined and disconnected from the wrecked Plekenergia. At least one ruin on the northern coast of The Dark Coast was discovered in a semi-operational state by the crew of the Aegis. This was very disturbing news to the Antikathonum, who fear that more surviving facilities might allow the K'Thonim to make a resurgence, or loose horrible magics into the world.
The tower in question was described as a "Lighthouse" and bore a huge red crystal at its top, which pulsed with an ugly red light. Ancient pre-Darkening scrolls depict the towers with a red crystal, and so scholars who are aware of the incident believe that this is what the crew of the Aegis found. Scholars also believe that whatever function the crystal performed, it was broken or malfunctioning.