Prior to While Guthix Sleeps, he is located in the dungeon. You need a Mithril grapple, Crossbow, 80 Agility, 80 Ranged, and 80 Strength to reach Movario. At the start of the agility course, grapple pylon and he is on the first island. He can be pickpocketed for a Pendant of Lucien. If you already have this in your possession you will be told that his pockets are empty. You receive 0 thieving xp for pickpocketing him. In While Guthix Sleeps, it is revealed that Movario's base is located underneath the Khazard Battlefield. Reading the notes found in his base is required to continue the quest.