“Old sins have long shadows”
Hallowe'en Party“Old sins have long shadows” is the maxim Hercule Poirot invokes to connect an ostensibly past history with the people still affected by it. In the exchange, the saying leads him from questions about Nora Ambrose and Janet to asking where Nora is now.
The Expression in Context
The remark follows a question about which of the two women had a boyfriend and another speaker’s dismissal that the matter was past history. Poirot counters that dismissal by quoting, “Old sins have long shadows,” then asks about Nora. The sequence gives the expression a practical force: the past remains worth pursuing because its effects may still be visible in the present.
Nora Ambrose and the Past
Nora had left the school and taken another post in the north of England; she had been naturally upset, and she and Janet had been great friends. Poirot’s question about Nora comes before he asks whether the police ever solved the case. The expression thus frames the conversation’s movement from personal consequences to an unresolved investigation, without itself establishing what happened or who was responsible.
