Blade of Tyshalle, sequel to Heroes Die, both by Matthew Stover.
Heroes Die

The novels are set in a future dystopia Earth where a parallel world called Overworld reminiscent of the worlds featured in post-Tolkien secondary world fantasy has been discovered. The corporations that run Earth send actors into Overworld in order to provide the masses of an overcrowded world with virtual-reality entertainment.
Blade of Tyshalle

Seven years after the events of Heroes Die, Hari Michaelson (also known as Caine) is a puppet executive on the Studio he used to work for. He is now a paraplegic and lives with his wife Shanna and her daughter Faith.