Tides of Pirates
Mysterious and savage, the Stormwrack is as ancient as Persus itself, according to most sages. Some say it represents the the efforts of the world to cleanse itself of the mortal races; to others, it is the manifested wrath of angry, spiteful gods. None dare to delve into its true nature, for to sail into the Stormwrack is to face madness, and death.
In physical terms, the Stormwrack is an ever-growing region of perpetual tempest. Oceans which are covered by it are constantly beset by hurricane-level winds and the tsunami waves which accompany them. Strange and twisted creatures dwell in these waters, while bolts of lightning seem to take on a life of their own, striking at ships with malice. Stormwracked lands are no better: all are rendered uninhabitable by the constantly pounding rain. Worse, it is said that when the Stormwrack claims a new island, the first thing it does is drive the inhabitants to madness, twisting them into unrecognizable horrors. These creatures are said to forever haunt the islands which birthed them, or slip into the ocean to join the monsters there.
It is impossible to estimate exactly how much of Persus has already been consumed by the Stormwrack. The regions of untouched lands and sea have been gradually divided into isolated pockets known as seafolds over the years. Travel between known seafolds is made possible only by the aid of stormrunners.