After Jeeves mildly reproaches Bertie's rashness, Bertie discovers that the necklace case is empty. Jeeves tells Bertie about a former employer who once gave a loan, with a pearl necklace as security, to a con man named Soapy Sid and his female accomplice. Soapy Sid swapped the case of pearls for an empty one, and used the receipt to demand reimbursement. Jeeves confirms that Sidney is Soapy Sid. Fortunately, Jeeves surreptitiously retrieved the case of pearls while helping Sidney with his jacket. Jeeves suggests that Bertie return the necklace to its owner, Aunt Agatha, and to make it clear to her that Aline was one of the thieves.
