Hermes Trismegistus is a mythical figure, from what I understood of it. Hermeticists sort of signed his name to stuff. It goes back to the Thoth/Hermes thing, and I guess Hermeticism grew out of the Plotinus school of thought at the Library in Alexandria. Anyone who's interested can find good coverage in the Gnosis Archive, or the G R S Mead collection at sacred-texts.com
fwiw August Derleth spelled it wrong, "Hermes Trismegistos" or something, in Lurker at the Threshold. But I probably spelled it wrong myself above, so whatever.
Good podcast, I enjoyed it multiple times.
This probably belongs in the What We Should be Reading thread, but here's a link that seems relevant to the story or at least the milleu:http://www.sacred-texts.com/ame/lol/lol104.htm
It's Myths and Legends of Our Own Land by Charles M. Skinner, 1896, the Salem and Other Witchcraft chapter. Danvers was where the first case came to light in the Salem Witchcraft apparently. Interesting, because I assumed the mental hospital in CDW is actually Danvers. There are other points of agreement between CDW and this chapter, but the curious are free to look for themselves (as long as the Sacred Texts website lasts, it seems to be going bankrupt right now. Buy a CD there if you like the site, some of them are priced fairly cheap).
Preparing to listen to part 2, just downloaded...