“I think we need a new knock,” he said. “Maybe something like, hard, soft, hard.” He rapped the pattern out upon his bedside table. “How does that sound?” “Fine, but what is it for?” “Well, it’s just our way of saying all those awkward things we’d rather not say out loud. Things like, ‘Don’t mind me, I’m just shouting at ghosts.’” “Oh, I see. Could it also say, ‘I’m sorry I ruined lunch by storming out like a spoiled brat?’” She delivered the pattern on the table: hard, soft, hard. “Absolutely,” he said. “That is exactly the sort of thing it would say.” “Between the two of us, I think this
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