YAY, Josh! *HIGH FIVE*
Here you go!
If you are short of time I suggest:
Pages 56 to 60 - EFFECTS And FLAVOR TRAITS
There are some nifty skills and spells, but all of them will have an Effect possibly modified by a Trait or two. If you can only read a few pages, read 56 to 60. The rest is relatively intuitive. If you have a bit more time:
Page 4 - Campaign Intro
Pages 14 to 21 - skim for Races, though monsters aren't in the main RB
Pages 49 to 51 - skim Combat stuff (weapon construction rules - WEEEE!)
Page 52 - basic search
Pages 53 to 54 - Death & Dying
Page 55 - Magic workings
Pages 56 to 60 - EFFECTS and FLAVOR TRAITS
Pages 86 to 87 - Signs and Markings
Pages 91 to 95 - The Prophecy setting and a Glossary