Real Points Network

The shell

The machine works based on the magical properties of newly discovered crystals that the city of Shal'aa found underground while excavating to reach the lake's water while avoiding the portal on the surface. These crystals have a property that dissipates —and even nullify, depending on the power— magic that go through them.

By carefully placing the crystals in the most mana-dense sections of the lake and adding complex runes —which people from all cities in Keetharsi worked together for a few days to create them, by using previous knowledge from Ashtara and re-applying them to Iphars' chaotic rules of magic—, a semi-invisible magical grid, or barrier, that surrounds all the lake on the surface and lowers, or cancels, the consequences of any magic crossing the barrier, whether from inside to outside or reverse.

This barrier can sometimes be seen by very keen people or when there's a lot of suddent magic trying to cross it, looking like wavy bright blue lines dancing in the air. For less keen people, or moments where there isn't as much magic crossing, it is much harder to see, one would have to be specifically searching for it and at most would just feel like there's something odd in the air.