Nobody has as hard a time as the Administrator. Worse still, he never gets to graduate.
The ADMINISTRATORS GUIDE is your DM kit for running games at Sigil Prep.
CHAPTER 1- Running Sigil Prep
CHAPTER 2- The Monster School
CHAPTER 3- A Guide to Cosmologies
CHAPTER 4- Magic Items of Sigil Prep
CHAPTER 5- Monsters of Sigil Prep