It was early morning. After a night of experimentation, Xu Qing now had three bottles in front of him that he was very pleased with.

He had done many, many tests to reach this point. It was the ninth generation of beetles. At this point, they definitely weren’t black. They were semitransparent. In terms of the comparative reduction in size between the previous generation and this generation, it was like the difference between an egg and a peanut. Considering that the previous black beetles hadn’t been visible to the naked eye, it made it even more clear how hard it would be to detect the new versions. If it weren’t for the fact that Xu Qing’s blood was connected to them, then even he would have a hard time spotting them, let alone other people.

In addition to that, the beetles’ poison was vastly stronger than before. That was the result of the immense amounts of money he had spent to buy poisonous plants. When these beetles entered the body of an enemy and started chewing away and releasing poison, the damage would be many times greater than before.

It was the same with the mutagen. The beetles were...