The material recipe for the Ten Divine Books wasn't complex. With the help of his two research cheats, the Golden Finger and his "Analysis" Authority, Isaac deciphered it in just half a month.
Just as Isaac had expected, the materials required for the Ten Divine Books weren't particularly high-level. They were mostly Tier Three materials, with only a few at Tier Four, but the quantities required were enormous!
A truly staggering amount!
This confirmed Isaac's earlier suspicion: the Divine Spirit Book's power to check Deities didn't come from absolute strength, but from restraint and binding. It used complex, super-composite Concepts to make it nearly impossible for a contracted Deity to circumvent the agreement.
This was also why Isaac hadn't created a Divine Spirit Book sooner. It required too many materials and was too exhausting. Back then, he was still focused on completing the Endless Tower's Trial, so he didn't have much time to spare.
