Even though Hannah clearly stated that she didn't need any assistance with her dinner party, it was against Sally's nature not to bring some sort of food or drink. Sally stopped by her flat on the way home from work to change into something more casual, grabbed a bottle of wine from her small storage and a raspberry tart she had made the night before.
During her quick apparition to Hannah's house, Sally thought about the last time her Hufflepuff classmates had gotten together. Megan's Boxing Day party seemed like a long time ago. She at least felt a little more comfortable about going to Hannah's house. While certainly impressive in its own right, it didn't make Sally as nervous as entering the Joneses startling beautiful home.
Sally was, however, a little concerned when she heard dogs barking when she rang the doorbell. They sounded....large.