Book excerpt: Here is an affectionate look back at the outsized heroes who once occupied the imagination of millions of loyal readers-The Shadow, Tarzan, Doc Savage, Captain Future, The Spider, Zorro. They were the original super guys, godfathers and inspiration to the likes of Superman, Batman and James Bond. Fascinating and informative, THE GREAT PULP HEROES is a lively and entertaining history of those fabulous characters, of the gaudy, glorious magazines that spawned them, and of the amazing wordsmiths who churned out their monthly adventures