As if she discovered a small army of silenced women captive in her pen, Megan Falley releases them in the spilled ink that is her most brilliant collection of poems, After the Witch Hunt.   Demanding "if you really love a writer, bury her in all your awful and watch as she scrawls her way out," her book does exactly that. An incessant digging, a journey in building escape routes, armed with both humor and a brazen darkness, each poem in this book of bloodletting is another swing of the pick and axe in this young woman's labor, insistent upon light.