King Elbas had to work together with Divine Demon to divine Harold's position. It turned out that the expert's task had led him near the windy region, but finding his exact location was hard at that distance.
Noah could only order his allies to move in that direction after the divination ended. Wasting time would only increase the risks, and he wasn't willing to deal with rank 9 existences just yet.
The group couldn't move quickly. They had to remain hidden from Heaven and Earth's inspection, and that required time.
Noah and Robert had to expand the mutated areas, and King Elbas had to devise methods that could block the white light. Noah could take care of that part, but he preferred to use his ambition on his companions.
King Elbas and the others had to find counters to Heaven and Earth's power by themselves, but Noah's law could help in the task. His ambition could force their existence to evolve past their normal level and reach realms that reflected their true shape.