Combine Seth Patrick's new novel Reviver with an app called Blippar and the clip above shows you what happens - cool, and yet super creepy. Here's the blurb for the book:
The Forensic Revival Service has its own website, too. [ViaRevivers. Able to wake the recently dead, and let them bear witness to their own demise. Twelve years after the first reviver came to light, they have become accepted by an uneasy public. The testimony of the dead is permitted in courtrooms across the world. Forensic revival is a routine part of police investigation.In the United States, that responsibility falls to the Forensic Revival Service. Despite his troubled past, Jonah Miller is one of their best. But while reviving the victim of a brutal murder, he encounters a terrifying presence. Something is watching. Waiting. His superiors tell him it was only in his mind, a product of stress. Jonah is not so certain.Then Daniel Harker, the first journalist to bring revival to public attention, is murdered, and Jonah finds himself getting dragged into the hunt for answers. Working with Harker's daughter Annabel, he's determined to find those responsible and bring them to justice. Soon they uncover long-hidden truths that call into doubt everything Jonah stands for, and reveal a threat that if not stopped in time, will put all of humanity in danger.