Ghosts I have been / The dreadful future of Blossom Culp

Ghosts I have been: Blossom Culp's gift of second sight, which she discovers gradually, leads her into some unusual adventures. The dreadful future of Blossom Culp: Blossom, not the most popular member of her freshman class in 1914, travels ahead seventy years, and returns in time to make Halloween a memorable night for her classmates and teachers.