A question, Bioluminescence
Exactly how tightly are your lips (or fingers, in this case) sealed when it comes to internal lore?
If I were to ask if the Ironspike mountains were caused by a shallow subductive, magmatic null orogeny; would you be able to answer?
I ask because of what you brought up Here about the existence of merely internal products. Of course, we've been aware that there was solely internal material for a long time (it was brought up during the Freljord event), yet I always had the conceit that this material would be released in a fairly timely manner.
If I'm pushing the boundaries of your NDA, I apologize. Morbid curiosity about the dysfunctioning world of Runeterra compels me to ask.