Paratus Decimius

 is an Imperial mage and a member of The Synod, operating at the Dwemer ruins of Mzulft. He is part of the quest, Revealing the Unseen, in which the Dragonborn brings the Focusing Crystal that his counterpart, Gavros Plinius, had lost. He wants the crystal focused in the Oculory in Mzulft's Aedrome. There is no penalty from killing him.

Quests

 * Revealing the Unseen