Everyone was stunned by the damage caused by the heavy artillery. This secret realm had been specially reinforced during its development by the two Human Emperor ancestors.
The entire secret realm space was more than five times the strength of the home planet, and its strength increased with depth.
The damage caused by the heavy artillery to such strong land and metal fortresses was therefore understandable.
Liu Xiu gasped and said, "The power is slightly stronger than a full-power blow from a peak Platinum stage. This weapon is a nightmare for warriors and armies below the Diamond stage."
Lin Zhan looked at the power of the explosion and nodded in satisfaction.
"Nightmare? I don't just want to be a nightmare for the myriad races; I want to wake them up screaming in their dreams."
He then said to Liu Xiu, "Ancestor, continue firing. Keep firing until the barrel deforms or explodes. You elders should also be careful."
Liu Xiu nodded and replied, "Don't worry, with our strength, there's no danger."
Lin Zhan nodded, and then he and Di Xin returned to the safe zone.
Liu Xiu and the others continuously fired shell after shell, the deafening roars echoing continuously.
Liu Xiu, his face full of excitement, shouted to Liu Che,
"Ancestor, what kind of brain does this kid Lin have? This thing is so much better than energy cannons. Not only is it powerful, but it's also so satisfying to fire. Hahaha, it's truly..."
Before Liu Xiu could finish, the reloaded shell exploded in the gun barrel, detonating several nearby boxes of ammunition.
A huge explosion erupted, and a small mushroom cloud shot into the sky.
Lin Zhan and the others stared dumbfounded at the four people engulfed in the smoke.
"Damn it, Ancestor, hurry and save them! We only have these two mascots in Huaxia. We can't lose them all here." Lin Zhan shouted at Di Xin beside him, and then he rode Xiao Hei and rushed forward.
Before Lin Zhan and the others could reach them, Liu Che emerged from the smoke, his upper body bare, with a dragon-shaped light wrapped around him, and riding a Suan Ni.
"It's fine, kid Lin. Don't panic. This little scene can't harm this old ancestor."
Lin Zhan knew that the Liu family's heritage was tied to the Imperial Dragon clan, and they must have many secret arts. Liu Che was not only a successful emperor but also a powerful high-level king.
Looking at Liu Che's bare upper body, a dragon tattoo wrapped around it, forming a lifelike dragon-shaped light that protected him.
Ba Xia also came out upon hearing the commotion. For the Nine Sons of the Dragon, this level of damage was merely a tickle. Suan Ni wasn't even harmed, let alone Ba Xia, who primarily focused on defense.
Lin Zhan said to Liu Che,
"Ancestor, I wasn't worried about you. I was worried about Ancestor Liu Xiu. I saw him earlier; he was so boisterous he was riding the cannon.
After Lin Zhan finished speaking, the three of them exchanged dumbfounded glances. Ba Xia whispered,
"It seems Lin kid is right. Liu Xiu was really riding the cannon. This time, won't it all go down in flames?"
The three of them then shivered and rushed into the thick fog together.
"Help! Someone, please help me! Help!" Liu Xiu's weak voice came from the fog.
Xiao Ji flew into the sky and flapped its wings, sending a gust of wind to disperse the smoke.
Only then did everyone see Liu Xiu, who had fallen into a large pit, his upper body pinned beneath the heavy cannon, with his lower body still straddling a half-broken barrel.
Moreover, the lightning, water, and fire elements generated by the explosion were still reacting and exploding. Every subtle explosion caused Ancestor Liu Xiu to tremble.
It was as if one spark and he'd flinch, one explosion and he'd tremble.
Ba Xia leaped directly into the pit, tossed aside the heavy cannon pinning Liu Xiu, and pulled him out.
Liu Che quickly ran over to examine him. "Quick, check if he's all there. Nothing's missing, right?"
After a thorough inspection, Liu Che finally breathed a sigh of relief. "Thank goodness, thank goodness. Everything's here. Nothing's missing."
Then his expression changed. He slapped the just-getting-up Liu Xiu again, making him stumble. He then roared loudly,
"You damn brat, at your age, you still have no sense of propriety! I told you to test the cannon, and you should have just tested it honestly. And you..."
Liu Xiu got up again and said,
"You old geezer, how dare you talk about me? Weren't you also shouting excitedly just now? You said our Human Race can finally hold our heads high, and we must drive those bastards of the myriad races back home. You were more enthusiastic than anyone about firing. Now that something's happened, you blame me.
"Besides, how was I supposed to know they produced this thing so unreliably? The small cannon was fine after over 300 shots, but this big one exploded after only 20-odd shots."
Lin Zhan saw that Ancestor Liu Che was about to make a move and quickly stepped forward to stop them.
"Two Ancestors, please calm down. Actually, this is also a good thing. Think about it, the power of dozens of shells exploding together. If it wasn't you four testing it, but normal experimental personnel, the casualties would have been immense."
Liu Xiu calmed down upon hearing Lin Zhan's words and couldn't help but nod.
"That's true. With the power just now, even a peak Diamond stage would be finished. Below the Diamond stage, there wouldn't even be bone fragments left."
Liu Che's eyes lit up and he said, "Holy cow, this is great news! Zhan'er, this explosion directly shows the lethality of the heavy artillery. If it's used on a large scale, and tens of thousands of shells land on the allied forces of the myriad races, after a few rounds, our army can go and finish them off.
"No, if the shells were denser, we wouldn't even need to collect bodies; they'd be cremated on the spot."
Liu Xiu added upon hearing his ancestor's words,
"That's right, Zhan'er. Ancestor is right. Hurry and have the arsenal improve it. It must be mass-produced. If the money isn't enough, I'll mobilize our entire family to get it for you."
Lin Zhan looked at the excited ancestors and said helplessly to Elder Qian,
"Elder Qian, use Diamond-grade alloy to cast the cannon barrels and add two more stabilization runes. Ensure that each heavy cannon can fire 1000 shots without damage. Also, improve the wind element array to increase the maximum range to 40 kilometers, and add accessories for rapid movement and deployment."
Elder Qian nodded and said, "These are all easy to modify. The only drawback is that once Diamond-grade alloy is used, the manufacturing cost of each heavy cannon will increase by at least more than two times."
Lin Zhan considered it and said, "Cost is not an issue. Safety comes first. Make the improvements."