A primary school girl may be hiding in my house because of family changes. What should I do now?

You can find out by chatting. As a college student, I always do questionnaires. Think ahead of time about what questions may know her family situation and address without being discovered by her. Such questions will be inadvertently asked between her and you. A sixth-grade child's thinking is not so complicated, it depends on whether you have that idea. For example, you can suddenly say: Where do you usually play when she is playing? Who are you and your good classmates, etc., then analyze the answer, lock the range of her home address, gradually break through, and finally achieve the goal of sending her home! Wisdom is more useful than words. I believe you can think of the questions in this questionnaire wisely!