Half a day later, the navigation system could no longer be used. Feng Qi put it back in his backpack.
For the rest of the journey, he could only advance by memory.
However, as the scenery was slightly different from what he remembered, it was difficult to distinguish the direction.
The compass was also affected, displaying noticeable errors due to the magnetic deviation in the polar region, rendering it unusable.
Hence, for the rest of the journey, Feng Qi slowed down.
During this period, he constantly corrected his position based on his senses and memories.
Ever since his mental power had increased, his memory had improved quite a bit. He could remember the iconic objects along the way.
For example, large rocks that were exposed to the snow.
After advancing non-stop for 28 hours, Feng Qi was still full of energy.
As for Mu Qing, she was not affected at all. This bit of stamina consumption was nothing to her.