Old-School Essentials Advanced Fantasy Referee's Tome

From the back cover: The essential old-school game of fantastic adventure, monsters, and magic — expanded with advanced monsters and treasures! This book contains full guidelines for creating and running adventures, over 300 fearsome monsters, and over 300 wondrous magic items. Simple rules let imagination and fast-paced action take the spotlight. Clear, modern presentation makes the game easy to learn and quick to reference. Compatible with decades of classic adventures and supplements. Includes all monsters and magic items from the Classic Fantasy Rules Tome plus loads more! Requires the companion book, the Advanced Fantasy Player's Tome.