Pools of Cerulean

From the introduction:

The Land of Ash and Smoke was once home to a wizard’s sprawling complex and although the balor and its minions are now destroyed, evidence has come to light that more than a little of the arcane enclave was shifted into the Abyss. Where such magics take hold, the world strains to contain such power. Some speak of the land rippling like water, and the air boiling into murderous mist, and of powerful abominations that step out of thin air. Part Two of the Broken Chains Series.