He knows a thousand arcane secrets, every one of which would drive you mad.
He knows a thousand and eight arcane secrets, every one of which would drive you mad (after Ritual of the Majarrat).
Initially, he is found at the agility course. You will need 80 Agility
, 80 Ranged
, Mithril grapple hook and a crossbow.
He plays a major role in While Guthix Sleeps, where he is found at Lumbridge Swamp Dungeon. He can be heard saying that he is looking for a source of energy, The Stone of Jas, for Lucien.
In the Ritual of the Mahjarret, he is found at the Mahjarrat Ritual Site, continuing this search.