How can a compass work on a Flat Earth?
The magnetic field is generated in the same fashion as with the RE (Diagram). Thus, the magnetic south pole is near the geographic north pole, just like on the RE. The magnetic north pole is on the underside of the Earth. The Ice Wall is not the south pole, but acts as it, as it is the furthest from the center of the earth that you can follow the magnetic field. The field is vertical in this area, accounting for the aurora australis.
