Had there been no other personal attribute to influence the final outcome, Tarzan of the Apes, the young Lord Greystoke, would have died as he had lived - an unknown savage beast in equatorial Africa. But there was that which had raised him far above his fellows of the jungle - that little spark which spells the whole vast difference between man and brute - Reason. This it was which saved him from death beneath the iron muscles and tearing fangs of Terkoz.