In this final installment of Tree of Aeons, Aeon finally takes the fight into the inner demonic worlds and launches an attack on the source of the demons. Aeon and the Order must uncover their foes' secrets, strengthen allies, and find ways to break through the demons' defenses.
Book eight of an epic reincarnation/isekai LitRPG story about a man who becomes a tree, growing and progressing throughout the ages in an eternal conflict against a demon incursion.