Unthinkable . . . impossible . . . unstoppable

Six months ago, Sean had everything. Now she has nothing but her private detective work, one client with a missing husband, and a growing body count.

All of the victims live in the same luxurious building as the missing husband. All of them have some connection with Pierce Sangstrom, the megacorp whose systems power every computer in the world. And, according to the medical examiner—who just happens to be Sean's ex—all the autopsies are rife with bizarre, inexplicable anatomical findings.

Are the victims time-traveling visitors? Nonhuman life-forms? Is there an unknown pathogen spreading like wildfire? A virus? Or something far worse?

One thing's certain: If it can't be stopped, it could be the end of everything.