So, Gravis and Mortis began to fly in a random direction, searching for anything that could be converted into money.
The extremely hard ore this deep in the earth couldn't be used. First of all, it was hard but brittle. At best, it could be used for buildings. Additionally, this kind of ore was scattered all across the world at this depth, making the supply endless. The Peak Sects had already squeezed all the money out of this kind of ore.
Fortunately, thanks to their Elemental Synchronicity, getting through the ore wasn't harder than flying through air. They could even teleport.
Only very powerful Divine Gods could survive in such a depth. Additionally, not many of those existed. On top of that, their Spirit Sense would be suppressed by a significant degree by the gravity.
Because of that, the two of them were safe at such a depth.
Yet, there also wasn't anything valuable at such a depth.