The Code of the Woosters, chapter 5, Bertie's room at Totleigh, same evening
Bertie breaks it to Gussie that Stiffy will give his notebook to Sir Watkyn, refuses both to steal the cow-creamer and to search Stiffy's stockings, and Gussie breaks a shepherdess and storms off as Jeeves announces Aunt Dahlia.
The text is on its way.
Present: Bertie Wooster, Gussie Fink-Nottle, Jeeves
Also there: brandy, the shepherdess
Mentioned: Archimedes, Aunt Dahlia, Roderick Spode, Sir Watkyn Bassett, Stiffy Byng, Stinker Pinker, the cow-creamer✦︎, Gussie's notebook✦︎, the Totleigh drawing-room