* Cristina's shoe contains dirt from one of the realities she has gone through in the past. How exactly Cristina traveled between realities is unknown, but she may have used various installations of [[The First World]], or through fractures in the realities similar to how [[Alek]] lead refugees towards [[The First World]]. What the dirt contained is unknown, it is unlikely to be [[GLORWOC]], as it would have spread and destroyed everything around it, so another possibility is another microorganism, such as [[Temporal Bacteria]], or a residue of some sort. Given the [[Regret Demon]]'s considerable abilities, it can be presumed that whatever was on the shoe is rare and hard to obtain, and provides a material advantage to the [[Regret Demon]], whatever its agendas may be.
* This has been answered as of 'Our Final Acts (Part 8)'. After the battle of [[Earth 44]], [[Cristina Thompson]] in despair activated the same [[Metallic Chip]] she had stolen as a teenager. Inadvertently she accessed the [[Orthogonal Reality]], an artificial reality separate to those of the standard multiverse realities. Her transport to and from this reality included a variety of materials, including the dirt on her shoes. The [[Regret Demon]] was able to analyse the shoe and dirt to determine the location of the [[Orthogonal Reality]], information which it subsequently traded to the [[Gemstone Hegemony]].
=== Who reprogrammed [[Noah Fulmer]]'s duplicate? What for? ===
* Current theories are that the duplicate of Noah was reprogrammed by either [[The Black-eyed Army]] or a similarly aligned faction. The party responsible for the shared psychic interrogation of both of the Noahs and a number of others ([[Roger]] and [[Jay]]) also used drugs, suggesting a less supernatural influence was at work. Their rapid departure would also match the actions of [[The Black-eyed Army]], who would likely have moved using the [[Shadow Sphere]]'s portal abilities.
* It was confirmed by [[Ward Shaw (The Sword)]] that [[The Black-eyed Army]] was responsible for the psychic interrogation of both Noahs, and that they had often used the duplicate of Noah for his unique psychic and emotion sensing abilities.