Character from the Hobbit

I really like the character Gandalf. He is so far in my novel the most powerful character. Gandalf is like the character who always saves the day and comes out at the most crucial times. He keeps readers wondering alot about his background, why is he helping the dwarves, and how come he has to leave. Gandalf keeps alot of mysteries to himself. Gandalf is the master of sorcery and weopenary. I really like the kind of character that is strong and powerful, Gandalf, from the beginning unlike like Bilbo who is weak and eventrually will become strong. Right now, in the story, Gandalf have to leave for an unknown reason, however I believe he'll come back right at the moment where Bilbo and the others are in deep trouble.