ch.23: Day after day passed away without bringing any other tidings of [Bingley] than the report which shortly prevailed in Meryton of his coming no more to Netherfield the whole winter; a report which highly incensed Mrs. Bennet, and which she never failed to contradict as a most scandalous falsehood.
ch.24: Miss Bingley's letter arrived, and put an end to doubt. The very first sentence conveyed the assurance of their being all settled in London for the winter.
Here's an example of local gossip being right! I'm sorry it didn't occur to me before the GR began, but some time I'd like to read P&P focusing on the role of gossip. I suspect that many modern, city-dwelling JA fans don't *quite* understand how gossip works in a small town, where everybody knows everybody else's business, and IMO gossip plays a surprisingly important role in all her novels!