Lu Yin initially thought that the Astral Academies were fixed academies, but he quickly realized that they were more like ten battleships that roamed about the universe. 

In the past, he had seen an unknown sky in the Skygazing Deck, and at that time, he had seen numerous battleships flying towards an unknown destination. 

The ten Astral Academies had actually been built upon ten battleships. 

Back then, he had not known where the battleships were headed, but now, he had an answer. They had probably been headed towards the Sixth Mainland, intent on joining the ancient war between the two Mainlands. 

That ancient war had been the true fight between the two Mainlands ; Progenitors, and even Envoy-realm powerhouses, were not safe from danger during those battles. 

These ancient battleships were all enormous, and each one was comparable to Millions City. Lu Yin had seen more than ten ships in his visions, but now, there were only ten remaining. 

These battleships were remnants of an older time. 

The Fifth Mainland’s current war with the Sixth Mainland had prompted Astral-9’s appearance, which had been built on the back of the ancient battleship. This truly was a continuation of the ancient war...