Question

what terrible thing do the boys realize about what is happening inside the church? What do they do about it? What do their actions say about their character?

Answer 1

they go into the church risking their lives

Answer 2

What book is this? If this is the outsiders they realize that there is a fire happening inside of the church and some children are trapped inside. They go into the burning church to help the children. Their actions say that they are caring and realize the cost of their actions.