Disclaimer

The year is 1966. Roxanne Schaeffer has a strange condition: she has quills growing around her hairline, which make her look like she's part porcupine. The doctors claim that it's a bizarre medical condition, but it got so bad that Roxanne put another girl in the hospital.
On her sixteenth birthday, her father took her and her younger brother to Cairnholm for a short vacation. This sparks a chain of events that lead the siblings to a paradise that couldn't possibly be the same island they arrived on. But it is...and some of the inhabitants are quite peculiar.

(Editing completed on April 28, 2019)