Welcome to the land of Yrth, a realm of incredibly varied races and monsters - including people snatched from our Earth and other worlds by the cataclysmic Banestorm! Now humans struggle with dwarves, elves, and each other. The Crusades aren't ancient history here - they're current events. And on this world, magic works! Journey from the windswept plains of the Nomad Lands - where fierce Nordic warriors seek a valiant death to earn a seat in Valhalla - to Megalos, the ancient empire where sorcery and political intrigue go hand in hand. Or trek south to the Muslim lands of al-Wazif and al-Haz to explore the forbidden city of Geb'al-Din. This is a complete world background - history, religion, culture, politics, races, and detailed, full-color maps - everything needed to start a campaign. Phil Masters (the Discworld and Hellboy RPGs) and Jonathan Woodward (Hellboy and GURPS Ogre) have compiled previous Yrth material and updated it with new peoples, places, and plots, as well as much more on magic and mystic powers. Make your own mark on Yrth. Plunder elven ruins while evading the desert natives. Play a peasant-born hero ... an orcish pirate ... a Muslim double agent commanded to infiltrate the Hospitallers. A world of magic is waiting for you ... Book jacket.