Arrival in Middle-earth. When he arrived to Middle-earth, he received Narya, the ring of fire, from Círdan the Shipwright. Olórin, renamed Gandalf , spent many centuries walking among the elves as a stranger, learning from them and teaching them. He later revealed himself as one of the Istari, and eventually became known as the wisest of and most powerful of that order. He joined the White Council, which was formed to investigate a dark power in Dol Guldur, of which Galadriel wanted him to become the leader, yet Saruman came to lead the Council instead of him. Although Saruman was initially more powerful and more knowledgeable about many matters regarding Sauron and the Rings of Power, and was head of the White Council before the War of the Ring, he later grew jealous and afraid of Gandalf,  which was the reason of his betrayal.