Master of suspense Jeffery Deaver returns with the latest gripping thriller featuring paraplegic forensic detective Lincoln Rhyme. Amelia Sachs is hot on the trail of a killer, chasing him through a Brooklyn department store when her pursuit is fatally interrupted. An escalator gives way, forcing Sachs into the machine to help those trapped in its depths. But was it simply freak accident? Could the killer's presence in the store just before the disaster really be a coincidence, or is there a deeper connection? Sachs and forensic detective Lincoln Rhyme must find out, before more people die. Because machinery malfunctions every day...and in the hands of someone smart enough, every piece of technology can become a murder weapon.