Title: Doc Savage. # 23.  Fortress of Solitude
Description: To the world at large, Doc Save is a strange, mysterious figure of glistening bronze skin and golden eyes.  To his amazing co adventurers the five greatest brains ever assembled in one group – he is a man of superhuman strength and protean genius, whose life is dedicated to the destruction of evil doers.  To his fans he is the greatest adventure hero of all time, whose fantastic exploits are unequalled for hair raising thrills, breathtaking escapes and bloodcurdling excitement.  The deep mysteries of Doc Savage are finally revealed! John Sunlight, poetic genius of evil, gruesome master of a thousand elements of creaming terror, discovers the innermost secrets of The Man of Bronze.  Doc Savage finds himself enmeshed in a diabolical web of dark horror as he valiantly battles the appealing machines of destruction he himself has invented.