Under the benevolent leadership of the League of Peoples, there is no war, little crime, and life is sacred...unless you're an Explorer. The ugly, the flawed, the misfit, the deformed, they are the unwanted, flung to the farthest corners of the galaxy to investigate hostile planets and strange, vicious creatures. Out there, there are a thousand different - and terrible - ways to die.

Anna Sinjari—refugee, survivor of genocide, disaffected office worker—has a close encounter that reveals universe-threatening stakes. While humanity reels from disaster, she must join a small team of civilians, soldiers, and scientists to investigate a mysterious broadcast and unknowable horror. If they can manage to face their own demons, they just might save the world.

On his way to his betrothal, young Lord Penric comes upon a riding accident with an elderly lady on the ground, her maidservant and guardsmen distraught. As he approaches to help, he discovers that the lady is a Temple divine, servant to the five gods of this world. Her avowed god is the Bastard, "master of all disasters out of season", and with her dying breath she bequeaths her mysterious powers to Penric.

In a corporate-dominated spacefaring future, planetary missions must be approved and supplied by the Company. Exploratory teams are accompanied by Company-supplied security androids, for their own safety. But in a society where contracts are awarded to the lowest bidder, safety isn’t a primary concern. On a distant planet, a team of scientists are conducting surface tests, shadowed by their Company-supplied ‘droid—a self-aware SecUnit that has hacked its own governor module, and refers to itself (though never out loud) as “Murderbot.”

Kim Lam is an ordinary college student until a freak scientific accident (what else?) transforms Kim and three housemates into Sparks - and drafts them into the never-ending war between the Light and Dark. They struggle to master their new abilities - and (of course) to design cool costumes and come up with great hero-names. Turns out that "accident" was just the first salvo in a Mad Genius's latest diabolical scheme. Now it's up to four newbie heroes to save the day, before they even have a chance to figure out what their team's name should be!