Only one man can stop the most dangerous conspiracy ever designed in a shattering thriller about the end of secrets from the author of The Speed of Sound.
After going on the run—for what he knows and has created—autistic Eddie Parks is back in Harmony House, the think tank that has been his sanctuary for sixteen years. With his miraculous invention, an “echo box” that excavates sounds from the past, Eddie achieved the only thing he wanted: to hear his late mother sing. But where Eddie sees good, others see infamy. Because no conversation ever held will be a secret again.
For Bob Stenson, leader of the American Heritage Foundation, whoever controls the echo box controls the future. To seize the game-changing device, he has to get Eddie where he’s most vulnerable: by kidnapping Dr. Skylar Drummond, the only person in the world Eddie trusts.
But Stenson has underestimated his prey. Eddie has the power of echoes on his side. Now he must follow them—into the most dangerous places he’s ever ventured—to save Skylar and the country.
Harmony House is more than a "special place for special people." It's a think tank where high-functioning autistic savants harness their unique abilities for the benefit of society. Resident Eddie Parks's contribution is nothing less than extraordinary: an "echo box" that can re-create never-recorded sounds using acoustic archeology.
All Eddie wants is to hear his late mother's voice. But what he's created is inadvertently posing a threat to national security.
To Harmony House's shadowy government backers and radical extremists, the echo box is the ultimate intelligence asset-an end to the very concept of secrecy. Now for Eddie and the compassionate Dr. Skylar Drummond, the true nature of the institution is becoming chillingly clear.
As ruthless competing enemies close in on Eddie and his miraculous machine, Skylar risks all to take him on the run. Because once that prize is won, Eddie Parks will no longer be considered a "special person" but a dangerous redundancy. An inconvenient echo that must be silenced.
