The overall flat terrain of the grassland exacerbated the difficulty of observing the conditions of the other group of challengers.
Chen Zhou and Paul could only confirm they were on the right path, heading in the correct direction, but didn't know if that group of challengers was still at the location previously observed—
The challenges in the environment were unpredictable, and any unexpected event could happen.
A migration of mammoth herds, or hunting by cave hyena packs, or the driving away by hairy rhinoceroses could all destroy the camp built by that group of challengers, forcing them to leave.
Even without the beast factor, if they discovered any defects nearby, they might relocate the camp to avoid incurring more sunk costs.
Not being able to observe the current situation of the other group of challengers in time left Chen Zhou and Paul uncertain.
