From the publisher's website:
This, the first SAS story kit for Changeling: The Lost, takes players’ characters into the weirdly fantastic realm of the Hedge, where the terrors and wonders of the Fae lurk, and into the passion and courtly conflict of those who have escaped the Faerie lands and back into our world. They - and your characters - are changelings. Forever hunted by their former slave-masters from the Faerie realm, changelings face magic and horror every night in the World of Darkness. But on a night like this one, there is also a chance for real hope. The question is, what will your characters do to bring hope to the changelings?
A child is going to be sacrificed... or rescued. You decide.