Pulse Zero

From E.M. Kelly — award-winning author of Murder By Symbols — comes Pulse Zero, the next explosive installment in the Detective Colton Baker Thriller series. It's a high-octane thriller that blends cutting-edge science with relentless suspense.
When a mysterious device deploys inside the Stoughton medical facility, every patient dies instantly, except one. The lone survivor becomes the only living witness to a massacre carried out with chilling precision. The killer vanishes without a trace...