3. What colour was the envelope, in which was Mrs Ferrars' letter to Mr Ackroyd?
From Quiz The Murder of Roger Ackroyd
Answer:
Blue
The Doctor goes for dinner at Ackroyd's home. Flora -Ackroyd's niece - tells him that she and Ralph are engaged. Mr Ackroyd seems distracted during dinner, and asks to speak to the Doctor in the study. In the study, Ackroyd tells Sheppard to make sure the windows are shut securely. He admits to his friend that he was in love with Mrs Ferrars and was going to ask her to marry him. The day before, Mrs Ferrars told him that somebody was blackmailing her. She admitted that she poisoned her husband, and she then killed herself. She never told Ackroyd who was blackmailing her - it might have been a member of Ackroyd's household. Parker, the butler, brings in the evening post. A blue envelope startles Ackroyd - it is Mrs Ferrars' writing. The Doctor encourages his friend to read it in his presence; it may contain the blackmailer's name. But Ackroyd puts it aside. The Doctor leaves the study at ten to nine, and heads home. He bumps into a stranger, asking for directions to Fernly Park. Just as the Doctor is preparing for bed, he gets the telephone call from Parker, the butler. Mr Ackroyd has just been found murdered.