Felix Honlan came to the small Alaskan town of North Spire expecting to take a couple of interesting photos and be on his way within the week. After all, it was little more than a remote outpost in the far north, a place so singular in purpose that all of its 300 or so inhabitants lived in a single ten story tall tower, the “spire” from which it took its name.

Within hours of arriving, Felix discovers that the town is a supernatural playground. After being taken in by a host family consisting of...