Just to catch everyone up, you should check out this post in the incomparable Shae's folder.
The story is still building but as a direct result of that story arc and his captivity with Shae's enemy, Fin is lost in the throes of a PTSD flashback.
Practically catatonic, Lucy has had him committed to an in-patient psychiatric facility.
Kaleidoscope is a glimpse into his mind during this period.
If anyone would like to visit Fin in the facility, please contact me and we can discuss.