Copied from my Ad Astra review...
This is a deeply powerful story, as much about faith as it is about the fear of the unknown in the face of impending disaster. I very much like this AU Dukat, and discovering that he (and likely his 'evil' twin in the Trek-verse) suffer from bi-polar disorder helps me understand the motivations and challenges of both men.
And, knowing as the readers do that for this Dukat the worst is yet to come, only makes it that much more poignant. It's obvious that Skrain takes the faith and strength of those who have surrounded him in his youth and uses it to gird his soul in the challenges to come.
Very, very well done.