Snyder, Zilpha Keatley

When the Stanley children meet Amanda and discover that she studies witchcraft, they suspect that she is causing the strange happenings around their house. They then learn that there is a legend about a ghost cutting the head off a wooden cupid on the stairway and wonder if the ghost has returned.

A shepherd boy braves the evil magic of a wizard's maze to save his pet lamb.

Life is never quite the same again for eleven-year-old David after the arrival of his new stepsister, a student of the occult.

The new boy at school introduces Amy to the secrets of Stone Hollow, where the circles of time converge.