Superman / Tarzan: Sons of the Jungle #1

This is a revisionist version in which Lord Greystoke grows up in England, while Kal-El is raised by the apes as "Argozan", although the two switch roles at the conclusion with Greystoke remaining in the jungle while Kal-El returns to the city, Greystoke stating in a letter to his parents that he feels as though he has found his true place.