A rare rock formation outcrop shelter of Magdalenian Period was found in Roche Imperatrice, Brittany, France that had portable art that was discovered at same location which paralleled images of the same god's rock shelter outside ledge Bull or Cow Face. Burial was found under the mouth of the Bull-Cow rock ledge. Clarke explains this concept and cult ideas in fairly great detail using examples from different sections of the ancient world by comparison. In order to explain the age of the type of Magdalenian Cult that had once existed. Where few archaeologists; have convincingly attempted, to even be able to admit, describe why or to tell what the purpose of its local system of veneration at that Rock Shelter of Imperatrice was like when compared to Late Paleolithic or even Mesolithic examples that in part do exist to elaborate upon some possible answer. Like a detective story, Clarke shows what important side patterns need to be noted when looking at such an ancient period of unknowns by other methods or examples in order to stay in line with chronology of the discoveries own period or age. Clarke proves something more mysterious is going on and not the usual mythic story lost to time with little language or records left to reveal its own origins from. It is one of the most convincing theories about this specific spot in France that Clarke points out should be noticed with much more seriousness of its own subject presented. Clarke claims this is almost a good example of a anti antediluvian story waiting to be expressed later in Western Europe's own tales of floods and lost lands as old as the Sumerian stories if not older. This is not a pseudo science book it has some hard facts that can not be ignored about the Radiant Bull of Imperatrice.