Every year, for many years, since I first read Natalie Babbitt's wonderful children's book "Tuck Everlasting" to my children who are now grown, I have celebrated Top of the Ferris Wheel Day. "The first week of August hangs at the very top of summer like the highest seat of a Ferris wheel when it pauses in its turning," Babbitt wrote. "The weeks that come before are only a climb from balmy spring, and those that follow a drop to the chill of autumn." The first week of August, she believed was magical.