How Iron Flame Set Up Violet's Second Signet & When She First Used It Before Onyx Storm

Warning: SPOILERS ahead for Iron Flame, and Onyx Storm by Rebecca Yarros.Rebecca Yarros' Onyx Storm finally reveals Violet's second signet after a year of speculation and dozens of convincing fan theories. Because of Violet's unique bonding of two dragons, it was largely expected for her to develop a second signet—a detail Yarros herself confirmed had, in fact, manifested in Iron Flame. Yarros has always been incredibly subtle with any foreshadowing she chooses to include in her Empyrean Series novels, but after Onyx Storm's reveal, everything Iron Flame set up for Violet's second signet was pretty straight forward.