Historical clue formulations

• 2003 best seller whose title is one letter different from a fantasy creature — 2021-03-28
• Christopher Paolini best seller — 2018-01-13
• First novel in Christopher Paolini's Inheritance Cycle — 2016-11-02
• Fantasy title character whose name is one letter different from the creature he rides — 2014-07-13
• 2003 Christopher Paolini fantasy best seller — 2010-08-19
• 2003 best-selling fantasy novel by teen author Christopher Paolini — 2008-05-25