[come tot thihnk of it, homura did remember times when witch barriers have crossed paths. usually the withces briefly greeted eachtot her before going on their way. Sometimes they fought over territory,. But sometimes even, they joined forces. Mami's with and Nagisa's witch were a combo at least once......
Homura narrowed her eyes at the later question] "the witch queen. of course. Walpurgisnacht." she pressed a button and all the research, including 18th century german texts recording her first sighting, she had collected about Walpurguisnacht so far appeared holographically on the walls] "according to statistics, she is due to appear in this city at the end of the month."