Mysterious Woman's Request - 2

I was asked by Mysterious Woman D to secretly deliver a sealed letter to Assassin Guild High Elder

First, speak with Dietmar standing in the corridor outside the royal queen’s office to hear the details, then head to the Assassin Guild

The Assassin Guild lies along the desert coast to the southeast of Morroc To meet the High Elder, you must speak with Assassin stationed in front of the shrine.