Fang expresses his astonishment and skepticism about his situation. He finds it hard to believe that he is caught between two contrasting worlds—one being a kind, caring family eager to adopt him, and the other a group of crazy scientists intent on conducting dangerous genetic experiments on children. This highlights the stark differences between the two sides and the difficult choice he faces.

The quote reveals Fang's frustration and the perceived unfairness of his circumstances. It underscores the tension in the story, as he navigates a life that is pulled between potential safety and love, versus danger and exploitation. Ultimately, it emphasizes the risky and unpredictable nature of his situation.