 Why would the trip Judy had taken with her grandparents to the fountain have likely felt longer than when she was traveling with Lois and Lorraine?
There was one I used to call the spirit of the fountain, but what she was or how she spoke to me is more than I know. It all began, she finally told them, the summer before they met. Her thoughts were what had made it so hard, she confessed now as she reviewed everything that had happened. Every summer Dr. Bolton and his wife relived it. And every summer Judy went to stay with her grandmother Smeed, who scolded and fussed and tried to pretend she wasn’t glad to have her. In another year she would have outgrown her childish resentment of her parents’ vacation or be grown up enough to ask them to let her have a vacation of her own. In another year she would be summering among the beautiful Thousand Islands and solving a mystery to be known as the Ghost Parade . As Judy wiped it away she noticed that it had fallen on a picture of a fountain. The thrill of walking up to the door of the palatial Farringdon-Pett mansion was still ahead of her. On the lawn a fountain still caught and held rainbows like those she was to see on her honeymoon at Niagara Falls. She and Lorraine had listened to this much of what Judy was telling them without interruption. And she went on to tell them how, the very next day, her grandparents had taken her to a fountain exactly like the one in the picture.
 Her grandparents were traveling by wagon.
 Lorraine was speeding through the roads to the fountain.  Her grandparents were traveling by wagon.  She had napped in the car, causing the ride to feel shorter.  She had napped in the wagon, causing the ride to feel longer.