Fool me once...

When Luna landed on the ground, still sitting on top of her, Liam started tossing the huge sacks, one after another forming a pile on the ground.

He did not have to explain to anyone what these sacks contained. They already knew the answer!

And more importantly, the number of sacks did not add up. If their calculation was correct, then their leader had somehow obtained more herbs than what they originally had.

"Brother! How did you get everything back?"

"Oh. That was easy. A simple smash and grab." Liam smiled, jumping from Luna's back. 

"There is no one guarding the transport carriage carrying these sacks. So all I had to do was deal with the single guy. Very straightforward daylight robbery."

Ah… everyone was dumbfounded. 

So this was what Liam was doing while they were busy grinding. He followed the demon and tracked the whole process thereby easily finding the loophole.