Filling the Void

Quick walkthrough

 * 1) Speak to Speaker Terenus
 * 2) Rendevous with Tanek and enter the Cathedral Catacombs
 * 3) Infiltrate the Catecombs
 * 4) *Kill the Wamasu Matriarch
 * 5) *Help Grazda kill Order of the Hour soldiers
 * 6) Battle Primate Artorius and his minions
 * 7) Kill Artorius with his own staff
 * 8) Return to the Sanctuary and speak to Speaker Terenus
 * 9) Oversee the initiation ceremony and earn the rank of Silencer

Reward

 * Unidentified Sithis' Touch Chest Armor
 * 1 Skill Point
 * Dark Brotherhood 10 Skill line experience
 * 302