In Dark Oasis, psycho-sleuth Jasun Horsley takes the "method-writer" approach: after succumbing to John de Ruiter's charismatic enchantments and formidable powers of suggestion, he enters all the way inside a murky maze of mind control and soul-subjugations, and makes it out the other side with a hair-whitening story to tell. Dark Oasis recounts how cult mechanics proceed inexorably from covert op to an open "Calling" to coerce and...