From malazan.fandom.com

The continent of Assail was situated between Genabackis and the Letheriicontinent. It was held to be the most dangerous and hostile part of the Malazan world. The Malazans knew of the existence of Assail and the Wreckers’ Coast along its shores, but the Empire had chosen to make no incursions there due to the extreme danger of the land. It was dominated by a human leader whose armies were powerful enough to destroy T’lan Imass forces. Little else was known of it.

Assail’s southernmost region (or subcontinent) was called Bael.