FBI agent Tranquility Dark and her team, Vigilant Lock, face a new type of threat: one from beyond the stars.

They’d always heard the Red Knight was an urban legend: in 1954, three years before Sputnik released, a mysterious satellite was sighted circling Earth, though no power on the planet had such technology.

But the Red Knight is true, and what’s more, it’s inextricably linked to a supernatural force no-one yet understands. Like a moth to a flame, this dark existence collides annually with the airborne satellite. Except this year the Red Knight is usually on training course to crash-land…in Oregon.

Vigilant Lock pieces out to get the crash site and secure the remnants prior to the mysterious power is drawn to Earth. But they soon discover the mission is far from straightforward-and they aren’t the just ones monitoring the Red Knight. To stop a deadly occult threat, Tranquility and her team must use almost all their assets: technology and sorcery, technology and magic. Luckily, Harmony has only begun to discover her developing power.