Yadamonerk said that the only lead to Gestanerk's murder is the rest of the torn letter. He asked you to search Kerubar in the area where you found his body. When you found the rest of the letter and checked the contents, you learned the letter was meant for Hecuba. When you went to her, Hecuba broke down and told you that an Asmodian Daeva must have deprived Gestanerk of his power and killed him. Yadamonerk was skeptical of this story.