Raina Bloodgood has one desire: kill the Frost King and the Witch Collector who stole her sister. On Collecting Day, she means to exact murderous revenge, but a more sinister threat sets fire to her world. Rising from the ashes is the Collector, Alexus Thibault, the man she vowed to slay and the only person who can help save her sister. Thrust into an age-old story of ice, fire, and ancient gods, Raina must abandon vengeance and aid the Witch Collector or let their empire—and her sister—fall into enemy hands.

Many centuries ago, desperate to save her dying sister, Dianna made a deal with Kaden, a monster far worse than any nightmare. Locked in servitude to him, she is forced to hunt down an ancient relic held by her most dangerous enemies: an army led by Samkiel, the World Ender. After the Gods War, Samkiel hid from everything, denying his crown and deserting his people. Now, an attack on those he loves sends him back to the realm he never wished to return to, and into the sights of an enemy he had hoped to forget.

In the far distant future, the universe is officially ruled by the Royal Consortium, but the High Councillors, the heads of the three high houses, wield the true power. As the fifth of six children, Ada von Hasenberg has no authority; her only value to her high house is as a pawn in a political marriage. When her father arranges for her to wed a noble from House Rockhurst, a man she neither wants nor loves, Ada seizes control of her own destiny. The spirited princess flees before the betrothal ceremony and disappears among the stars.

Kira Forrest is a survivor. She's risen above the pain of her beginnings to become a war hero only to leave it all behind in the pursuit of a simple life. Now a salvager, she makes a living sifting through the wreckage of dead alien ships from a war that nearly brought humanity to its knees. After her ship takes damage, she's forced to re-route to a space station where her past and present collide with dangerous consequences. Kira's existence holds the key to a faltering peace treaty with the Tuann - a technologically advanced alien race who dislikes and distrusts all humans.

Octavia Zarola would do anything to keep her tiny, close-knit bounty hunting crew together—even if it means accepting a job from Torran Fletcher, a ruthless former general and her sworn enemy. When Torran offers her enough credits to not only keep her crew afloat but also hire someone to fix her ship, Tavi knows that she can’t refuse—no matter how much she’d like to.