In fact, Cang Xu had a considerable understanding of the Undead Orthodoxy forces.
Ever since he became an Undead Mage, he had been paying attention to them.
Previously, though, he was limited by his own level and disguise, making it impossible to access high-level information.
But after the Mysterious Monster Island, he acquired the War Merchant's database, which significantly expanded the high-level information. The War Merchant database contained detailed descriptions of the Undead Orthodoxy forces and the Ancestor of the Undead, You Can, along with his Twelve Saints.
Then, Cang Xu encountered the ship ghost and entered the Nether River with him. Though the process was extremely perilous, it indeed deepened Cang Xu's understanding of the Undead Orthodoxy by one more layer. Not only did it provide him with high-level knowledge, but also a practical experience of the living conditions of an Undead Mage.
