Mr Rennie

In the short story The Affair of the Pink Pearl, Mr Rennie is a young man who is courting Beatrice Kingston Bruce. After a valuble pearl of a house guest of the Kingston Bruces goes missing, both of Beatrice's parents are quick to blame him. They dislike him because of his strong socialist views. Moreover he had dropped by after dinner, around the time the pearl was believed to have gone missing.

Rennie's behaviour is also suspicious. Tuppence notices that he is hiding in the shelter of a gateway opposite the house and hurriedly crosses over when Tommy drives off. He is rather surprise to meet Tuppence, not knowing that she has remained behind in the house. He is evasive when questioned by Tuppence, especially when Tuppence reveals that she knows that Beatrice had stopped by to see him the morning after the disappearance of the pearl while she was on her way to consult The International Detective Agency. Rennie tells Tuppence he needs time to think the matter over. One thing he does say at least: he is gratified to learn from Tuppence that Lawrence St. Vincent is engaged to another woman. Beatrice's parents had been pressuring her to marry Lawrence because he would one day inherit a title.

Rennie is described as a lanky young man with ill-fitting clothes and eager dark eyes.