Popular Portsmouth writer J. Dennis Robinson describes the "making of" his latest history books. They include Point of Graves, his first "history mystery" and Portsmouth Time Machine, a colorful comic book-style history of Portsmouth, created with children's book illustrator Robert Squier. Robinson will also preview his newest myth-busting history entitled 1623: The Forgotten Arrival and Strange Disappearance of New Hampshire's Founding Family. How better to celebrate the region's 400th anniversary.