Barnabas Collins Versus the Warlock (Volume 11) (Dark Shadows)

Barnabas Collins Vs. the Warlock (October 1969)\nDavid Collins and Amy Jennings, two charming, innocent children are suddenly turned into demons. At first their pranks only annoy Maggie Evans, their governess. But soon she realizes they have become malicious, bent on destroying all of Collinwood.\nConvinced the children are possessed by a mysterious, supernatural power, and frightened for her life, Maggie turns for help to Barnabas Collins.\nWill his powers be strong enough to overcome the evil forces that captured the minds of the children before they—and Barnabas—are completely at the mercy of the devil himself?