The Enchanter Compleated Author:L. Sprague de Camp, Fletcher Pratt "The mathematics of magic - it was the greatest discovery ever, or so thought Professor Harold Shea. With the proper equations he could instantly transport himself and his long-suffering colleagues back - or sideways - in time to all the wondrous lands of ancient myth and legend....But slips in time were a hazard. And Shea's magic sometimes back... more »fired...."« less