Behold!  The first riveting installment of Hagthorpe’s Bookshelf, a new feature of PDXYAR.org.  Once per fortnight, Admiral Giles Seamus Hagthorpe MacGuffin will tickle yer fancy with his take on a pirate-themed book.  In this article, the Admiral takes on Barbary pirates in Richard Zacks’ “The Pirate Coast”…