Why is the crew crying in the odyssey?

Why does black lung aka arthur morgan let only jhon and abigail go and not sadie in the last chapter

For english i have to find 4 errors in each diary post

Then she heard his step on the stair away down on the first flight, and she turned white for just a moment. the phrase "she turned white for just a moment" is mainly used to show that della has very fair skin. is afraid of jim's reaction. is beginning to get an illness. had become extremely angry.