The Inimitable Jeeves, chapter 18, Bingo's flat, end of the week
Lord Bittlesham opens Bingo's door and flees in fright, and Bingo explains that Jeeves fixed everything by telling the old man Bertie is a lunatic who believes he is Rosie M. Banks, with Sir Roderick Glossop backing it up.
The text is on its way.
Aside, months before Bertie's pushing Glossop's son into the lake at Ditteredge Hall, and Glossop's lunch among cats and fish and the pinched hat, are recalled.
Present: Bertie Wooster, Bingo Little, Lord Bittlesham
Mentioned: Jeeves, Oswald Glossop, Rosie M. Banks, Sir Roderick Glossop, Ditteredge Hall