Mnemoliths

The Mnemoliths are relics created by the Root that contain clues of the past before the Sweep. They come in a variety of sizes and shapes, ranging from towers that reach through a planet's stratosphere, to polyhedral stones the size of a book. Locations are all throughout the Verse, and yet more have to be found or even opened.

While some activate to reveal their secrets through just physical contact, others require a solving a challenge such a puzzle or a fight requiring combat.