Book excerpt: In this expanded and revised edition, Don Herron's " Dashiell Hammett Tour" guides you over the fog-shrouded hills stalked by Sam Spade, the Continental Op, and other legendary characters created by San Francisco's most renowned mystery writer. See every place Hammett is known to have lived in the City and the majority of locales from his master mystery, " The Maltese Falcon." Prowl the back alleys where the Op fought hard-boiled criminals with a blazing .38. Shadow Sam Spade in his quest for the fabulous figurine of a mysterious black bird. See the dead-end alley where Spade's partner, Miles Archer was done in by Brigid O'Shaughnessy. A consise biography introduces the tour, and an annotated bibliography provides further information about Hammett and his works. Maps are included for self-guided tours by foot or machine.