Yes, there is an excerpt. You can read it at the Shur'tugal web site (no surprises there). See the related link to go straight to it.
Katrina
September 23, 2008
Aray i heard tell of it from Christopher Paolini himself. I hope he dose not guess who i am for reveling this but i felt i had to. !!! edit: there is no new rider in Brisngr
"Brisngr" is a book in the "Inheritance Cycle" series by Christopher Paolini. It was released in the UK on September 19, 2008.
In America Brisingr is going to be released on September 20th.
Paoloni is writing a fourth book which is speculated to be named empire
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Excerpts from a Love Circus was created on 1996-09-09.
Excerpts from the Diary of Todd Zilla was created on 2005-09-27.
Oromis and Glaedr die. Those are the only major characters i can think of. (songjongsuk) there is also the ra'zac and the lethrblaka.