War heroes aren't usually called out of semi-retirement and sent to the far reaches of the galaxy for a routine investigation. So when Colonel Carl Butler answers the call from an old and powerful friend, he knows it's something big - and he's not being told the whole story. A high councilor's son has gone MIA out of Cappa Base, the space station orbiting a battle-ravaged planet. The young lieutenant had been wounded and evacuated - but there's no record of him having ever arrived at hospital command.

Sergeant Gastovsky—Gas to everyone but his superior officers—never wanted to be a soldier. Far from it. But when a con goes wrong and he needs a place to lay low for a while, he finds himself wearing the power armor of the augmented infantry. After three years on a six-year contract, Gas has found his groove running low-level cons and various illegal activities that make him good money on the side. He’s the guy who can get you what you need. But he’s always had his eye out for a big score—the one that might set him up for life after the military.

Ranger Quinn thought that morning would be like so many others. A hangover, a day off before going back to work keeping the lower levels of Zion City safe from itself. But a crime so horrific, so brutal in its execution, turns those mundane expectations around. An investigation into the death of a senior leader in their underground utopia safe from the harsh radioactive wastelands beyond their walls forces Quinn beyond that safety and into the world outside.

The ice is coming. It was the last thing we expected, but the world is freezing. A new ice age has dawned. Billions have fled the glaciers. A cataclysmic war is coming. In orbit, a group of scientists are running the Winter Experiments, a last-ditch attempt to understand why the planet is cooling. None of the climate models they build make sense. But then they discover an anomaly, an unexplained variation in solar radiation...and something else. Close to the burning edge of the sun, they catch a fleeting glimpse of something that shouldn’t be there....

Lieutenant Kiera Markov is a scout platoon leader for a peacekeeping force on the remote planet of Tanara, where little has happened for decades, and the only mission is to keep the lithium flowing up the space elevator to feed the galaxy’s incessant demand. But when an unprecedented attack kills the entirety of the brigade’s leadership, the untested lieutenant suddenly finds herself in command.