The Bokrug sleeps under the calm of the water in the lake between the cities of Ib and Sarnath. It awakens when the humans of Sarnath slaughter those living in Ib and steal their god's idol. Each year after the slaughter, the water would ripple throughout the lake. On the 1000th of Ib's destruction, Bokrug rose up and destroyed the city of Sarnath, leaving no trace of its people behind. The Thuum'ha race eventually recolonized the area.
