This exchange meant I could use higher grade bones safely to secure my needs. The higher the bone grade was, the higher the exchange rate would be.

It seemed profitable to exchange higher grade bones. But come on! How often would I get such bones?

Not to mention their amount in my inventory wasn’t as much to get me what I wanted!

“Sigh! I had to go all out using my blue, silver, and gold bones first with my green ones. Then I’ll worry myself about other types of bones,” I decided to purchase the basic necessities first.

I upgraded the castle to level ten, the towers also to level ten. I added twelve more towers at the castle, making the total number there reach fifteen.

Then I scattered five towers at each path. I also upgraded the armour and weapons of my soldiers to level fifty, adding magic and flying soldiers to the mix.

Then it came down to the big guns; the number of forces summoned each time, shortening the duration of each summon, adding monsters loyal to me at the forests and upgrading them, summoning the defensive posts and upgrading them, and last thing was the special items like revealing the map and the silence item.

All these would cost me a fortune! Just finished the first purchase spree consumed almost fifty percent of my overall bone storage.

And what remained made me feel it wasn’t going to be enough! Not at all!

“Hmm… Let me purchase the most needed items first,” I decided to exhaust the low and medium grade bones first before thinking about the highest grade ones.

I bought the special items first. I purchased three silence tools, and one to reveal the map for thirty seconds per minute.

Then I went to purchase the summoned monsters. I bought ten of them and upgraded them all to level ten. Then bought ten of the posts, and upgraded them all to rank ten.

By doing that, all the bones in my inventory got consumed, the low and mid grade ones. What was left now were the highest grade bones.

“I got a few of them… It’s really a loss to spend them here…” I hesitated.

The things I lacked would be to elevate the level of my summoned soldiers and shortening the duration of each summon.

The problem here was that there was no limit for these two. Perhaps the duration of the summon would hit the rooftop of one second, but upgrading the level of soldiers had no rooftop.

What if the enemy upgraded his soldiers to level fifty and mine were at level ten? That would mean the end of the battle before it would begin.

“Hmm… I got a few dark realm monster’s bones here…” I had to keep the dark realm monster bones for myself. I knew that. But I also knew that I could only use the high grade bones and higher.

I got lots of unneeded lower grade bones that I could spare to sell. Unlike the highest grade normal bones, these ones had no real value for me.

The exchange price of this dark realm gold grade bone is ten million green bones

“Damn fierce!” I sucked a cold air of breath when I saw this message in front of my eyes.

Ten million? Damn fierce! That was way beyond my imagination!

I looked at my inventory and when I saw the current number of dark realm bones there, I couldn’t help but laugh.

“Ok, time to elevate the level of my soldiers to level one hundred,” I said amidst my laughs before I started to shorten the duration of the spawn to reach the least time allowed; one second.

And after doing all that, I still got a few gold grade bones left to use.

“Let’s buy more posts and upgrade them,” this was the most undetermined variable here.

The forest battle was going to be hot. And if I had much stronger forces than him but ended up without having enough posts to defend the forests, then I’d be screwed.

So I raised the number from ten to thirty and upgraded them all to level then.

Then I bought forty more monsters using dark gold bones. The single one of these would be exchanged for one hundred and twenty-five million green bones.

I bought these monsters and upgraded them. Then I added more towers to the paths and my castle, ending up with double the initial number I had after my first purchase spree.

I have thirty towers at my castle, and ten on each path now. After I finished all that, I found that I spent close to one hour since coming here.

“Damn! This took too much out of me!” I shook my head in a hopeless way before I started to sit down, and regulated my breathing without closing my eyes.

“I hope the time will be enough,” I evilly grinned before adding, “I want to sacrifice one million souls to activate the healing effect. Make it big, covering up one hundred miles.”

You will pay ten million souls to cover up such distance. Do you want to do it?

“Yes,” this was my last trump card. I didn’t know how vast this battling arena was. So I had to make up for any unforeseen circumstances and cover up such a huge area.

Then what came next was for my souls to form a wailing greyish ball around me, while I started to feel the same pain again.

I didn’t mind such pain this time. My only worry was that the time wouldn’t be enough before the start of the battle.

However, just as I opened my eyes and the pain subsided with the disappearance of the greyish ball, I got a message popping in front of my eyes.

You are late to the challenge!

“Damn! I messed up!!!”

When I read this message, my heart clenched tightly and I didn’t know what to do.

Would I be doomed as failing this challenge? Would I be the loser and he would emerge as the winner?