'Thanks,' said Harry, picking up a packet of tiny black Pepper Imps. 'What's Hogsmeade like? Where did you go?'
By the sound of it — everywhere. Dervish and Banges, the wizarding equipment shop, Zonko's Joke Shop, into the Three Broomsticks for foaming mugs of hot Butterbeer and many places besides.
'The post office, Harry! About two hundred owls, all sitting on shelves, all colour-coded depending on how fast you want your letter to get there!'
I couldn't identify any verbs in the sentence in bold above. Does it have a verb in it? To me, it just provides a list of shops' names. I'm not sure if it is common in English. I've never seen this type of sentence before. Do we have a specific technical term to address it? Or if any kind of the guide when/where/how to use it?