Mr. and Mrs. Dove are often quarrelling couple who reside at 21 London Road. Jacob Balthazar's Landlady, who just woke up, thinks the noise made by Polly which returned to late Jacob Balthazar's house as a quarrelling sound of Mr. and Mrs. Dove.
Trivia[]
- In the earlier magazine version, they were named The Duponts. It was before Hergé naming the two detectives Thomson and Thompson. In the modern French version, they are named Mr. and Mrs. Dupuis.