Just reread this childhood favorite. My son and I are studying the Salem witch trials, and this story takes place very near them in every sense.
What I think I admire most about this book is that the writer doesn't idealize her protagonist. It's not just that Kit isn't perfect -- she's terribly wrong sometimes. I remember how taken aback I was to see Kit's oblivious indifference to the slavery that surrounded her when she grew up in 17th-century Barbados. Speare handles this expertly, making the modern reader squirm with the uncomfortable awareness of how easy it is for not-horrible people to live next to evil without recognizing it as such.
If you haven't yet read this modern classic, you're in for a treat.