Witch war on Hitler

[vonjunzt]

Some years ago, I remember reading somewhere about groups of witches and other occultists who waged a magical war on Hitler. For some reason I think Gerald Gardener was involved, though I'm not certain. Some of this could have been sparked by William Seabrook's Hitler Hex party, which was covered by Life.

Can anyone tell me where I can find sources to read about this? Contemporary materials from the time would be especially interesting!