I asked him, gingerly, if I could come at a time when the Psilocybes were fruiting. “Most of them have already come and gone,” he said. “But if you come right after Thanksgiving, and the weather’s right, I can take you to the only place in the world where Psilocybe azurescens has been consistently found, at the mouth of the Columbia River.” He mentioned the name of the park where he had found them in the past and told me to book a yurt there, adding, “Probably best not to use my name.”