Her parents, Mr. Collins, and her sisters were already assembled in a domestic scene fraught with the kind of energy only a ball could occasion.
One thing that doesn't make sense, Mr. Collins' name. It should be Bennet. Any other name suggests he is not the true heir to Longbourn Estate. Travelling down a different branch of the family tree to find a male heir, that male would have the same surname. If none are found then it would revert back to the Crown.