As Rean traveled around the higher realms, Havek and Qia never stopped their work. However, due to the war, they barely had time to do anything other than expand the communication network between the three main powers in order to help with the war.
When the war started, all the Continental Barriers disappeared without a trace, leaving just a pitch-black chasm where they previously stood. The orders from the top experts of the three races were simple. Do not enter it, do not go down. They should use it to get inside the Devil's Territory, and it's just that.
Naturally, Qia and Havek send many formations masters together with the arms. Space-Time Realm Cultivators, Demon Beasts, and Spirits followed them too. With that, towers and more towers of communication were erected as the arms advanced. By now, they had already numbered the hundreds of thousands.
They are back... kinda. xD