The present book's suggestion-Alamoutblack, an almost purehashish with a few pinches of belladonna and stramonium-isbased on:
2
Ever since Marco Polo recorded the story of the Garden of Delights, Western commentators have identified Hassan's "magick chemical" as purehashish.
3
"Someone visited your chambers last night," he said slowly, "and for your chloral tabloids substituted some containing hashish, or perhaps not purehashish.