Once more into the breach

Last night I went out to Duncan's to play Scrabble with him and his mother. Mrs. Anderson is really good at Scrabble, although I think Duncan is convinced that I let his mother win since she's worried about his father.
Now Duncan's convinced that his father is in Niagara Falls, and that he has to go find him. Charles Wallace wants to help Duncan, so between the two of them I'm going too. It couldn't be worse than going off to find Arne.