The Shadow Over FaernThe Time of Troubles had arrived. The chaos of spilled blood, lawless strife, monsters unleashed, and avatars roaming Faern had come.But wrathful and warring gods were not Faern's only problem.The dreaded and insidious Shadowmasters had seized the opportunity to increase their influence and power while Mystra and her minions were otherwise engaged. The Shadowmasters had woven a mgical cloak of spells that would render the wearer invisible to their rival's magic.The shadow over Faern spreads.
Cloak of Shadows
Wizards of the Coast Publishing
The Shadow of the Avatar, Book II