Brother Wolf had spotted the five little animals.
There were too many people in the camp and Li Du had been worried that the five animals would cause trouble. After all, those little ones enjoyed making trouble. Hence, during the day, he had tied them up to restrict their movements to the tent.
The five, therefore, were restricted and frustrated. However, Li Du had also been afraid that they would meet with trouble at the same time. Hence, he had also kept a close watch on them and had not been able to roam too far away in the day.
By nighttime, they had lost their will to play around. After being with Li Du for so long, they have become smart and developed the thinking skills of men. However, they did not like moving around under dim light.