http://tvtropes.org/pmwiki/pmwiki.php/Trivia/CasebookOfTheBlackWidowers Following Trivia / Casebook of the Black Widowers Go To × Edit Locked Literature Trivia Create New - Create New - Analysis Awesome Characters FanWorks FanficRecs Fridge Funny Haiku Headscratchers Heartwarming ImageLinks Laconic NightmareFuel PlayingWith Quotes Recap ReferencedBy Shocking TearJerker Timeline WMG YMMV Other trivias: This is Isaac Asimov's book number 212. Previous Index Next Case 63 « Trivia » Case Closed