After I killed the Banshee Witch, the unravelling of her magic caused me to become mostly untethered from the temporal flow. I'd appear, right where I had been, but after time had passed without me.
I formed an unusual friendship with the Vampire Balanda, since she was the only being who knew who I was and would still exist.
I found her in various states, ruling, hiding, building, tearing down. I begged her to fill me in on the history I'd missed, but she kept refusing.
Until she explained that she couldn't condense civilization fully collapsing and rebuilding every time.