Dragonlance® Campaign Setting Companion
From the publishers website:
The Fifth Age of Krynn—known as the Age of Mortals—has been a turbulent time for the world of Krynn. The gods who watched the world were absent for decades, mighty dragon overlords warred and conquered vast territories, and old magic had to be learned to replace the new. An epic War of Souls had to be fought to restore some of what was lost-ushering in a new and exciting era, full of possibilities for both good and evil.
The Age of Mortals campaign book is designed as a companion volume to the Dragonlance Campaign Setting published by Wizards of the Coast. Designed and written by the same design team (under the guidance of author Margaret Weis), this volume gives players everything they need to play in any Fifth Age campaign-including during and after the War of Souls itself.
Age of Mortals contains an update on the races of Ansalon, many new prestige classes, feats, equipment, magical items, and spells. It details many important potential adventuring locations in great detail, as well as mighty dragons and many important characters of the era.