THE CYBERWORLD IS ABOUT TO UNLEASH HELL UPON THE REAL WORLD -- AND ONLY ONE HACKER CAN STOP IT. Her friends call her "Roller" because of her wheelchair, but the witty, wise-cracking, pistol-packing agent is better known at the CIA as "the Veterinarian." She's the woman dispatched to cage big dogs and bring the bits and bytes to heel. When Roller's superiors discover the balance of power between the U.S. and Russia is...