My review can be summed up in one short sentence:
AAAGGGH RIGHT IN THE FEELS.
The link I'll provide explains everything, but in essence, it is a short 20-minute sequel to Peter Pan, and oh...it hits hard. Peter returns years later to fetch Wendy again, but is instead kidnapped by a stranger living in the Darling house. The story is rather dark and atmospheric but also done very well, and brings up a few "what-if" questions regarding what happens after the story ends.
It's currently available for free on Short of the Week.