A robin, a ribbon, and a lawn mower

"It's summer, and the weird sisters are bemoaning the lack of customers to their pet emporium and newly opened detective agency. They believe Covenly residents think they're too strange, so the sisters decide fitting in better will gain them business. The plan? Nine-year-old Jessica will teach them how to swing--an everyday, commonplace activity in Covenly. But they arrive at the big chestnut tree only to discover the town's beloved tire swing ly...