The Mod-O-Pyr was found by forty_two after much exploration of the PvE map. Legend has it that the bones of the thousand slaves used to dig the pyramid out rest below the now peaceful grass floor. Remnants of the civilisation that dug it suggest that they used mainly primitive stone tools, exhausting the population so much that the entire civilisation died out after completion of the project.
When forty_two stumbled upon the pyramid, the only thing that remained to do was plant a tree in the corner, thereby much increasing the attractiveness of the area and making it a more mod friendly place to be. Reports of the pyramid's healing powers have been much exaggerated over the eons, probably stemming from the tendency of the pyramid's pig population of stumbling into the lava falls and leaving behind tasty bacon.