How did the Mindlords protect Saragar? We all know about the physical barriers, and the border guardians. But lets face it, that isn’t going to stop a Sorcerer King or the Dragon. Furthermore, in MLotLS the Wanderer writes about Saragar, which means that the secret is already out there (that’s pretty dumb, though, and I ignore it).
How DO they protect Saragar then? What is disclosed in MLotLS is impressive but insufficient. Lets whip up a quick idea.
The Mindlords are in the possession of 6 artifacts discovered in the Green Age (they originally had 9). These 6 identical artifacts are the Radiomantic Mind-Bombs (RMBs), which are something like a psionic nuclear weapon. While the RMBs would probably not destroy an SK, a single RMB could destroy 60% of a tablelands city’s population, while 2 RMBs hitting a single city would wipe out 90%.
In the distant past the Mindlords demonstrated their power by destroying a tablelands city utterly, using 3 RMBs on a single city and demonstrating to the Sorcerer Kings the Mindlord’s response to aggression. Perhaps the city that the Mindlords destroyed was Kalidnay.
What is certain is that the Mindlords did not create the Radiomantic Mind-Bombs, nor did anyone they know. Unbeknownst to the Mindlords, each RMB has at its core a weaponized illithid elder brain - no longer conscious, but primed for a radiomantic psionic explosion. How 9 elder brains got to Athas, and how 9 elder brains were turned into RMBs is a mystery lost in the sands of time. Perhaps it has something to do with the conflict because the various Gith sub-races.