Tether - Paperbackby Jeremy Robinson (Author) In the middle of the night, an explosion rocks Cambridge, Massachusetts and wakes Saul Signalman from bed. Blue, ethereal light pulses into the sky. A FaceTime call pulls him away from the view. It's his wife, consumed in light, bidding him farewell. And then the call ends. The explosion of light intensifies. The power goes out. Electronic devices stop working. In the dead of night, he races to his wife's lab at the