Wilds of Desolation
A region exists along the frontier of the Grass Plains Empire, where the rule of the mighty Savants ends and the chaos of savage mutantkind begins. Though little is known of this rugged, mountainous enclave of terrain, it is said that tribes of mutants fleeing Savant rule and lordship have made this barren wasteland home for numerous generations. Savages one and all, these tribes are said to sever heads and shrink them in boiling chemicals, and wear them as charms of luck to inspire valor in battle.
Other stories also speak of cannibalism, and powerful shamen among their ranks that command weird mental powers to shield their brethren against the onslaught of Savant expeditions set after them into the Wilds.