Nikkano made efforts to gesture, while pulling out a thick "formula book," attempting to prove his value and that he wasn't a worthless waste.
Bai Pu also roughly understood his meaning from his gestures.
The magnetic field of the demon crystal involves earth vein energy, which requires the perception through spirit talent, then using the "61 basic magic symbols" to form various complex formulas to calculate.
The final arrangement and combination of the magic symbols will provide the magic compass's pointer with a preset variable suitable for the earth vein's magnetic field at that location.
This way, the results given by the magic compass will be more accurate.
