Dark World Mates Series by Olivia Riley

He's not like anything Lana has ever encountered.Asset X: Massive, deadly, a little terrifying to say the least. A devilish warrior. And a killer. Captured on a hellish world after attacking a military campsite and now imprisoned in a state of the art cell inside one of the military’s top bases--Lazris.And Lana has been assigned to "study" him. To learn his secrets and gain his trust, if he is ever allowed to set foot out of his cell... moreHe's not like anything Lana has ever encountered.Asset X: Massive, deadly, a little terrifying to say the least. A devilish warrior. And a killer. Captured on a hellish world after attacking a military campsite and now imprisoned in a state of the art cell inside one of the military’s top bases--Lazris.And Lana has been assigned to "study" him. To learn his secrets and gain his trust, if he is ever allowed to set foot out of his cell. As a top behaviorist, it is the biggest hurdle of her career.Asset X--or Xerus as he is called--won't give up his secrets easily. He is difficult, elusive, and--dare she say--unfathomably alluring...despite his seething demeanor and hard, frightening physique.Something subconsciously draws her to him. Something wildly irresistible. Even if his wicked smile and needful gaze could just be a ploy to win her trust and escape his cell. She shouldn't think of him like that. He is an alien after all. And possibly their enemy. For Xerus claims he is on a mission. A mission to destroy. And he cannot afford to fail. If he dares let Lana get close, dares open his cold heart to her, she could compromise everything.Heart's Prisoner is a complete standalone novel in the Dark World Mates series, a universe teeming with ferocious aliens and brave heroines. This book contains dark tones, heated intimate scenes, and intense moments with possible triggers including violence and is intended for mature readers.Inspired by the short "Dark Prisoner" by Lora Darc. less

A chance encounter can change everything.When Aly joined the Grayhart mission to find advanced civilizations within deep space, she didn't expect to be captured far from home and taken to Xolis--a galactic empire like none ever seen, ruled by the nillium--a powerful race with a serious god complex.Now outsiders, Aly and her team of explorers are sent to the darkest place within Xolis: Lethe Maws... moreA chance encounter can change everything.When Aly joined the Grayhart mission to find advanced civilizations within deep space, she didn't expect to be captured far from home and taken to Xolis--a galactic empire like none ever seen, ruled by the nillium--a powerful race with a serious god complex.Now outsiders, Aly and her team of explorers are sent to the darkest place within Xolis: Lethe Maws. A mining city on a planet home to outcasts, slaves, and monstrous creatures lurking in the deep dark.And home to the Dark One, a dangerous exile even the nillium fear, living at the bottom of the mines where all are warned never to go.When Aly runs into the legendary alien in a very unlikely place, what she finds is no monster but a large, mysterious, nillium male with fierce silver eyes, who makes her heart race.But though the nillium outcast had reached for her, desiring to touch her, fascinated by her as she was of him, Aly soon learns he's not looking to be friends or possibly something more.For what Aly doesn't know is the Dark One--known by his kind as Ryziel, son of the nillium's now dead ruler--isn't looking for love or a mate. He's looking to get off Lethe Maws for good and return home to his brother, the only family who accepts him for who he is, the only one who matters.But the human woman brings out a darker part of him that he can't control--something he never thought possible. As he is determined to escape, he struggles to understand his need for her. A need to protect her. A need to claim her. But determined not to let her get too close lest she be his undoing.Try as he might to keep her at a distance, Aly will become the one thing Ryziel needs to be free.Dark's Savior is a standalone novel in the Dark World Mates Series. For a better understanding of certain situations and more enjoyment of this universe, it is best to read book one:Heart's Prisoner less

From their first encounter, she knew he was troubleA top operative in her field, Elise was trained since youth to be one of Earth's most elite soldiers.But nothing could prepare her for Tyrminus and the deadly aliens taking over the city.One job: find the Grayhart team of explorers that have disappeared within the undercity and bring them back alive. A seemingly impossible mission... moreFrom their first encounter, she knew he was troubleA top operative in her field, Elise was trained since youth to be one of Earth's most elite soldiers.But nothing could prepare her for Tyrminus and the deadly aliens taking over the city.One job: find the Grayhart team of explorers that have disappeared within the undercity and bring them back alive. A seemingly impossible mission.One rule: stay away from the alien bounty hunters--especially their terrifying and hypnotic leader, Nezka--who've been assigned to hunt down the mysterious criminal overlord now ruling the undercity.As much as Elise would gladly abide by that rule, fate had other plans.Now Nezka is her only hope of surviving.Despite how wicked and dangerous he may seem, the ruthless hunter claims he will aid her in the fight to save the others and escape the city.Because protecting her suddenly seems his top priority.But Nezka carries dark secrets, including a separate mission that could destroy the growing bond between them.Can she trust him? Or will he be her end?Shadow's Chosen is a complete standalone novel in the Dark World Mates series with intense action-packed moments, heated intimate scenes, and dark elements. It includes possible triggers including violence and is intended for mature readers.Though Shadow's Chosen can be read on its own, to get a better understanding and feel for certain situations and characters, its best to read book one and two:Heart's PrisonerDark's Savior less

Lana and Xerus return...and encounter a life-altering threatXerus: loyal, protective, swift, powerful. Named predomis--highest warrior among the vrisha--and guardian to his queen.And Lana's one true mate.Several years after Lazris, Lana has called the vrisha's world her home. After a long mission kept her and Xerus away, they finally return to Tryth, hoping to settle back into the life they had and spend each moment together... moreLana and Xerus return...and encounter a life-altering threatXerus: loyal, protective, swift, powerful. Named predomis--highest warrior among the vrisha--and guardian to his queen.And Lana's one true mate.Several years after Lazris, Lana has called the vrisha's world her home. After a long mission kept her and Xerus away, they finally return to Tryth, hoping to settle back into the life they had and spend each moment together.But when the discovery of a galaxy-sized threat presents itself, and they learn of a dangerous empire seeking to hunt humans for its benefit, Lana and Xerus must work together to stop a major catastrophe and possible war, before it's too late.As large of a problem that seems, Lana finds an even darker, more disturbing, complication within her own mate. Something that could sever their relationship completely and shatter the bond they had built since the beginning.As they strive to save the human race from being hunted and killed, Lana fights to save the one who matters to her the most.Heart's Keeper is the fourth book and final to the series and contains dark elements including violence and is meant for mature readers only. In order to have a complete understanding of characters and situations it is highly recommended that books 1-3 be read first in this order:Heart's PrisonerDark's SaviorShadow's Chosen less