Hello. You did not enter the text to which this question refers, which makes it impossible for it to be answered. However, I will try to help you in the best possible way.
It is only possible to answer this question by reading the indicated pages. By doing this reading, you will be able to discover what is the element that makes the family afraid. This is because this element will be mentioned by the family in a cautious, apprehensive way and will cause anxiety, tension and dread to all members of the family.
When you identify this element, you must explain why the family is afraid of it and the negative effects that this element can have on family members.