McCullough, Joseph A. Frostgrave. Fantasy Wargames in the Frozen City

In this fantasy skirmish wargame, wizards do battle amidst the frozen ruins of the ancient city of Felstad in the hopes of discovering the treasures of a fallen empire. Each player takes on the role of a wizard from one of ten schools of magic, and builds his band of followers. The wizard's apprentice will usually accompany his master and more than a dozen other henchmen
types are available for hire, from lowly thugs to heavily armoured knights and stealthy assassins. Wizards can expand their magical knowledge by unlocking ancient secrets and can learn up to 80 different spells. As they gain power and wealth, wizards can also develop their headquarters on the outskirts of the city, turning one of a dozen different basic locations into bastions of their art, equipping them with alchemical laboratories, mystical forges, astronomical telescopes and other magical resources. While individual games of Frostgrave are quick and can easily be played in an hour or two, it is by connecting these games into
an ongoing campaign, that players will find the most enjoyment. The scenarios given in the book are merely the beginning of the
limitless, thrilling adventures that can be found amidst the ruins of the lost city.