harry potter (ch 2 of fictional sequael 3

A sigil—an ancient crest of wandmakers—appeared scorched into the sky above Hogsmeade one evening. Wands in the nearby area fizzled out like wet matches.

Hermione uncovered texts describing a secret pact made between the three greatest wandmaking families: Ollivander, Gregorovitch, and Morvani. The pact kept wand magic regulated across Europe.

But someone had broken it.