KATHERINE. He thinks it is his duty.
OLIVE. To your neighbour, or only to God?
KATHERINE. To both.
OLIVE. Oh! Are those his letters?
KATHERINE. Yes.
OLIVE. [Reading from the letter] "My dear Heart." Does he always call you his dear heart, Mummy? It's rather jolly, isn't it? "I shall be home about half-past ten to-morrow night. For a few hours the fires of p-u-r-g-a-t-or-y will cease to burn—" What are the fires of p-u-r-g-a-t-o-r-y?
KATHERINE. [Putting away the letters] Come, Olive!
OLIVE. But what are they?
KATHERINE. Daddy means that he's been very unhappy.
OLIVE. Have you, too?