Questions: 

1.Tirian calls the chief Calormene a “miscreant.”  What does that mean?  

     For this passage ,this word mean some one was not on Tirian's side ,was the enemy.

2.What does the Black Dwarf's name make you think of?  Does the name seem to fit his temperament?

      The name of Black Dwarf is Griffle. Emmm,I do not think something of the name.

     Through the conversation,I thought his temperament was very upright,talked about the real thought about Aslan, some other didnot want to say.

3.How is Tirian surprised by the dwarfs?  Whom do the dwarfs say they are for?   

    The Dwarfs didn't want to know more about Aslan and didn't believe Aslan no longer,they want to live for themselves.