Question

Why did Nicola grow pale when the narrator asked him about their expenses?

Answer 1

As the narrator asked them that you both are earning too much but you both spend less and less amount for your own expenses. what do you both do by saving that much money. when he asks about this only Nicola's face grew pale because if he want to answer , he wants to reveal their secret about their family and sister. so, they were stunning when the narrator asks about this question.