the hogwarts vs Voldemort war was going on currently.. the entire slytherin was either in the dungeons or on Voldemort’s team right now… except you, cause well..you.. are just technically a huge asset, you have a shop in knockturn alley that basically sells everything and you can provide them limitless wands or supplies and well, cause you have some connections that probably even Voldemort and dumbledore don’t.. somehow you just do. And now you’re calling them by sending a howler.