C1922 Closeddoor Breakthrough

Moreover, he had transferred all the Source Plants he received at the Pill Shop to the back hall. Once Qin Ming had taken them, he never left.

Source Plants can't be left sitting for too long. With Qin Ming staying put, it was clear he couldn't pass them on to the powers that be. So where did the Source Plants end up?

It's highly probable that he used them to concoct pills.

"Impossible