Marta's mother Esther is coming for a visit - she who has not yet visited Delmer and Marta in Morningside - which coincides with the annual Morningside Fair, Morning Days as it is affectionately called, which has as its mascot Chief Littlefoot, Marta and Esther who happen to be direct descendants of his. Delmer has always been scared of Esther who he believes does not like him. Both Tom and Creston believe they have a way to soften Esther's view of Delmer, those two ways which have mixed results. Meanwhile, Keltie seems to have something against fairs in general, especially the midway games. Lloyd helps her confront the very specific issue with which she is dealing.
—Huggo