Kamarathin: The Kingdom of Tursh is the first title in a planned multi-volume exploration of the fantasy-world/fantasy-setting of Kamarathin.
Tursh is a one of the oldest kingdoms in Kamarathin. This volume deals with all the different aspects of campaigning in Tursh including: history, climate, calendar, currency, rulership, military, the law, the underworld, languages, etc. One town, the Village of Rayne, gets a particularly detailed treatment.
There are significant chapters dedicated to Religion, Magic, the Surrounding Nations, and, of course, Character Creation. The Character Creation chapter covers races, equipment, weapons, etc., all defined in HERO System terms.