Answer:
"Oh nothing, nothing, " "Somebody just walked over my grave" said by Aunt Alexandra in " To kill a mocking bird"
Explanation:
Aunt Alexandra and Atticus did not attend the Halloween pageant because they were too tired, Alexandra was helping with the decoration all day and just as she was giving her excuse for not going, she stopped talking in the middle of her sentence, then Scout asked what the problem was, then she replied "oh nothing nothing" "somebody just walked over my grave". This statement was a premonition of something bad to come.