King Cat is the 4th chapter of Inheritance. It was released on April 13, 2010, with the paperback edition of Brisingr (the final version differs slightly). The chapter takes the point of view of Eragon.
At the castle of Lord Bradburn in Belatona, Grimrr Halfpaw, the King of the Werecats, negotiates with Nasuada regarding his kind joining with the Varden. After some compromise, they reach a deal and the Varden are strengthened by the werecats.