Nikabrik- and a similarity with Christian Faith and the Narnian world

A bad character in Prince Caspian is Nikabrik. He is a dwarf that has lost all (or never had) faith in Aslan. He ends up trying to call up the spirit of an evil witch who used to control Narnia in order to defeat Miraz, but instead got killed by the people who he didn’t believe in. This was Peter and Edmund from “The Lion the Witch and The Wardrobe”, who come back as The Kings of Old. Nikabrik never had liked Prince Caspian (AKA King Caspian), and had performed open treason when he had invited a hag and werewolf to summon the White Witch. In the beginning of this book he had already admitted that he didn’t believe in Aslan, who in the real world would be called Jesus, and he had tried to call on the Spirit of the White Witch who could be considered like the Devil. Nikabrik I guess is like a devil worshiper in that light. Who calls on the wrong source for power and ends up dying because of it. Other than that similarity, Nikabrik was very selfish in why he wanted to go to the White Witch. He had said that she had been kind to dwarves, but had also said that she wasn’t very nice to anyone else. This shows that he knew that no one other than dwarves would be treated fairly if she came into power, and I think this makes him an evil character.