From PathfinderWiki

Sihedron Heroes and the timeline

I commented out this section:

, eventually leading to its destabilisation when the Sihedron Heroes attempted to harvest energy from it. As time began to flow properly again, chronogeists no longer formed, but the existing ones could be freed only by destroying Crystilan itself

It is unclear to me when in the setting timeline this occurs, or whether it is appropriate to document it at this point since it appears to me to be the result of PC actions and therefore a canon possibility but not confirmed, especially since the AP is still not complete and the last issue is still more than a week out from being sold. It also suggests a course of PC action to resolve what I'm guessing is one of the cruxes of City Outside of Time, but I don't have the book to confirm and I'm not sure any of the active admins do either. (CC User:Yoda8myhead) -Oznogon (talk) 02:57, 23 January 2019 (UTC)

According to the first and fifth volumes, this event happens before the AP begins, without any PC involvement whatsoever (except the destruction of Crystilan, and I didn't write the page in such a way to suggest that this event actually happened yet). - HTD (talk) 03:32, 23 January 2019 (UTC)