The controversy between Wasson and Allegro was influenced by many factors, not the least of which was that neither was an expert in all of the fields of inquiry relevant to the question. Wasson, a banker turned mycologist and Allegro, a philologist and esteemed investigator of the Dead Sea Scrolls, relied on information beyond their own field of expertise. Irvin’s book is very detailed in its consideration of the evidence of Wasson’s questionable behavior. As such, it is a detailedFone might even say nitpickingFconsideration of the details that bear out his conclusions about Wasson’s irresponsible behavior that has led generations of mycologists and entheogen specialists to discount Allegro’s work. While Allegro’s reputation may not be salvaged with respect to this now widely discounted work, hopefully his groundbreaking conclusions will not be neglected. Irvin’s book helps to bring to light this unfortunate chapter in entheogenic studies and to reestablish the legitimacy of the hypothesis of the entheogenic aspects of Christianity. This revised perspective has been receiving increasing support from the work of Ruck et al. (2001, 2007) and Rush (2008).