The zombie horde was still two hours away from reaching the defensive line at Celestial River Mountain.
Shen Jin was burying large quantities of [Industrial TNT].
Shen Jin had already tested it before. The industrial version of TNT was about four times as powerful as the original.
Its explosions were even more violent than those of [Energy Crystal Core Bombs].
It lived up to being a product that required three [TNT] plus other materials to craft.
It was more concentrated, and stronger too!
After two zombie hordes, Shen Jin had gained a new understanding of setting traps and felt he could arrange them more sensibly this time.
Moreover, after everyone obtained the Blockify Ability, they had all awakened... strange traits.
Everyone had gained a new understanding of creation and destruction.
For example, right now...
Just as Shen Jin was considering densely packing [Industrial TNT] inside and beneath the walls,
Yang Ao came over and said he had his own opinion.
"Brother Jin, I think doing it this way... I'm not saying it's bad, it's just a little... wasteful. Some of the explosive power goes to waste. For example, when we held off the zombie horde in Q City last time, I noticed that packing the bombs too closely together did make for satisfying explosions, but... most of the blasts were concentrated in that one small area. The initial force could blast right through Tier 1 Evolved Zombies, while the later blasts only hit some of the zombies and mostly dealt burning damage, so..."
Shen Jin thought it over briefly. Yang Ao had a point, especially now that they had switched to [Industrial TNT]. The bombs were more powerful, and packing them densely would waste a great deal of their power. He had already planned to lay fewer of them, but