Eye Wall at World's Edge

A massive looping tempest, driven by the act that thwarted the invasion of Gruhlim by the Swarm. Collectively a null, avoided by circumnavigation, is accessible only through the travel Westward from Mantara. Of particular note is the size of the threshold, more than 150 miles across, and accommodating directional travel for those who cross the threshold into the Storm. It appears that vessels or transports that cross into the Storm may also return, though it seems empirically impossible to reverse the course from within, though attempts have been chronicled by eyewitnesses.