Magic Strikes (Standard format, CD, Library ed)

Drafted into working for the Order of Merciful Aid, mercenary Kate Daniels has more paranormal problems than she knows what to do with. And in Atlanta, where magic comes and goes like the tide, that's saying a lot.
But when Kate's werewolf friend Derek is discovered nearly dead, she must confront her greatest challenge yet. As her investigation leads her to the Midnight Games--an invitation-only, no-holds-barred, ultimate preternatural fighting tournament--she and Curran, the Beast Lord, uncover a dark plot that may forever alter the face of Atlanta's shapeshifting community.