'When I grow up, I think I'll marry Spiller." Arrietty thinks that would be a good idea. Pod seems noncommittal, and Homily thinks Spiller would be all right if Arrietty tied him down a bit. What does Spiller think? Some days he thinks it's a good idea, and some days he doesn't. How long will it take for him to make up his mind, and will Arrietty change hers?