The Assassin's Sin by Libby Webber

Even from the grave, the Senior Assassin is ruthless. Kat wanted the Senior Assassin eliminated—just not yet. Now, Legacy Inc rages forward leaderless, she’s locked out of the finances required to keep the assassins in line, and the Senior Assassin’s contingency hit list has just been activated—with her name and every other Legacy Blood offering big rewards. There are only two ways to shut down the list: either Luke claims his spot as Senior Assassin and unlocks the vault, or find the only person to ever hack into the Legacy system: Aeron’s techie. But Luke is missing and Aeron’s head is worth 4.5 million at the top of that list. Kat must race against the vengeance of Senior Assassin and the blood-thirsty, money-hungry Legacy Inc assets to save herself, Luke, Aeron, and the innocent lives they swore to protect.

The Assassin's Storm by Libby Webber

Mourn the dead. Bury the guilty. Take the fucking crown. Opening the Legacy Inc vault was supposed to solve all of their problems, but the hit list is still live, StormLink is down, and Mason just declared war on the Syndicate. To stay alive, Kat must work in the shadows to find Mike Barnes--the last known programmer to work on StormLink. But her enemies have other ideas, baiting her out of hiding by capturing Shay from her West Indies compound and snatching her sister—who is still on the brink of death. Kat races against her enemies, her ghosts, and her own self-doubt to lead and save the people she loves. But reclaiming her title as Senior Assassin has become more than a personal vendetta—it’s now a fight for survival.

The Assassin's Legacy by Libby Webber

A love to kill for. A love to die for. And a secret to keep the body count rising. Aeron’s Legacy is to protect the innocent. Luke’s Legacy is to lead his fellow assassins into a new generation. When a traitor tries to kill them both, they must gamble lives they’ve sworn to protect to ensure the survival of their hidden society. But only one of these assassins has the true murderer in their sights while the other gambles an innocent life. As the body count rises around them, Aeron and Luke must determine which lives are worth saving and which deaths they can justify in order to protect each other and stop the Legacy from being destroyed.

The Assassin's Alliance by Libby Webber

She won’t stop until she gets what was stolen from her—her freedom. Her future. Her legacy. Her vengeance. Maureen McCall thought she was free, convinced a faked death, a new name, and a life in the shadows would keep her out of the black ops world for good. She was wrong. When the Underworld comes looking for answers and her aunt is murdered, Maureen is pulled back into the deadly world she fought to escape. Now, under the watchful eye of the Legacy—a secret society of assassins sworn to protect the country—she must spy on the family that cast her out. But her new home isn’t safe either. Elijah Wayward, the son of the Senior Assassin, sees her as a threat. And when Maureen uncovers his plans to dismantle the Legacy and rebuild it into a pay-for-hire empire, she becomes his number one target. Torture, heartbreak, and impossible choices follow as she fights to stop him before there’s nothing left to save. But she can’t do it alone. The Legacy was built on sacrifice, but to outmatch Elijah, she’ll need something forged in vengeance—an Alliance. If she can survive long enough to see it rise. This prequel will bing you back to where the Alliance started, and what caused such a rift in the Legacy to break it into three sects of assassins. Action-packed meets emotional depth in this book, you will not want to miss out.