Missed Chapter 23? Free Supernatural Fanfiction – Chapter Summary:  Dean learns to block energies and attempts his first exorcism—with snark, soulwork, and stolen groceries. Rating: PG-13Contains:   Mild language, supernatural themes, and demon-related intensity CHAPTER TWENTY-FOUR:  More Lessons WITH LESSON ONE COMPLETED, we took a break and ate. Afterwards, I wanted to tell Dean how…