Chapter 480: Nourishing the Tree with Mortal Blood, Eternal Demon Prison (Combined Chapter as a Thank You for the 100 Coin Reward from Book Friend 0500)

Inside the central medicinal garden, there are ten Netherworld Heavy Ironwood trees lined up in a row, each one not very tall—in fact, they could be considered short.

Their surfaces were covered with black Spirit Patterns that twisted and turned like script from the netherworld.

This was also the biggest difference between Netherworld Heavy Ironwood and ordinary Heavy Ironwood!

Ordinary Heavy Ironwood was simply heavy like iron, usually used to forge the shafts of long spears, while Netherworld Heavy Ironwood was the best medium for carrying souls, and even had a faint ability to repair some damaged souls. This was the reason why the Demon Banner was made from Netherworld Heavy Ironwood.

These demons within the Demon Banner would not only not weaken over time, but instead grew increasingly fierce and strong!

"These are Netherworld Heavy Ironwoods that are three thousand years old!" Jiuxiao Scatter Man exclaimed in surprise.