Alexander didn't leave immediately, but everyone could feel that the time for his departure would arrive soon. The hybrid had to make sure that his abilities expressed his new cultivation level and that he understood the depths of his new power before venturing into the stormy regions alone.
However, that was a solitary process that the other experts couldn't affect. The end of the meeting started another long period of seclusion that culminated in another exchange of goodbyes, orders, and promises. Alexander left the orange city right after that.
The team of eight that left the black landmass lost its current strongest member, but no one felt sad about it. Actually, Alexander's departure inspired his companions to do better and approach the last realm of the cultivation journey quickly.