The house on Ridge Avenue had stood vacant for 20 years. Nobody lived in it. Nobody dared. But to Thomas Alva Edison, the house was a perfect place for his latest experiment. If people could talk to each other across time and space, he reasoned, then why not talk to the dead.

For another 40 years, the house's ghostly inhabitants and Edison's infernal device were forgotten. but Laura Hawks and Brian Kellog wanted to know the truth: What had Edison done -- what spoke to him? The only way to find out was to re-create his experiment.

There was only one problem. Edison's meddling had changed the house's evil into something much worse. And it waiting hungrily.