One huge twist from Iron Flame could be expanded on in Onyx Storm through General Lillith Sorrengail’s journals, adding even more nuance to the narrative after her death. The new Onyx Storm quote Rebecca Yarros posted to her Instagram shows that audiences will get a glimpse at General Sorrengail’s journals from her time as a Captain in Navarre’s army. That in of itself is exciting as it could reveal several pieces of new information, but those journals could also elaborate on information that was already disclosed, giving Violet the answers she craves.

https://screenrant.com/onyx-storm-lilith-sorrengail-journals-expand-iron-flame-deal-op-ed/