Once & Future Series by Amy Rose Capetta, Cory McCarthy, A.R. Capetta, Cori McCarthy

A modern take on the classic Arthurian legend. Ari Helix has been an illegal immigrant in the galaxies for as long as she can remember. But when her spaceship crashes on Old Earth and she pulls a magic sword from an ancient willow, her destiny becomes set in stone. As the forty-second reincarnation of King Arthur she must save humanity from tearing itself apart, with only the help of an adolescent wizard named Merlin... moreA modern take on the classic Arthurian legend. Ari Helix has been an illegal immigrant in the galaxies for as long as she can remember. But when her spaceship crashes on Old Earth and she pulls a magic sword from an ancient willow, her destiny becomes set in stone. As the forty-second reincarnation of King Arthur she must save humanity from tearing itself apart, with only the help of an adolescent wizard named Merlin. This female king must battle for her right to be herself, take down totalitarian governments and unite the world. How hard could that be? less

King Arthur as you've never imagined! This bold, sizzling YA retells the popular legend with the Once and Future King as a teenage girl -- and she has a universe to save. I've been chased my whole life. As a fugitive refugee in the territory controlled by the tyrannical Mercer corporation, I've always had to hide who I am. Until I found Excalibur. Now I'm done hiding. My name is Ari Helix. I have a magic sword, a cranky wizard, and a revolution to start... moreKing Arthur as you've never imagined! This bold, sizzling YA retells the popular legend with the Once and Future King as a teenage girl -- and she has a universe to save. I've been chased my whole life. As a fugitive refugee in the territory controlled by the tyrannical Mercer corporation, I've always had to hide who I am. Until I found Excalibur. Now I'm done hiding. My name is Ari Helix. I have a magic sword, a cranky wizard, and a revolution to start. When Ari crash-lands on Old Earth and pulls a magic sword from its ancient resting place, she is revealed to be the newest reincarnation of King Arthur. Then she meets Merlin, who has aged backward over the centuries into a teenager, and together they must break the curse that keeps Arthur coming back. Their quest? Defeat the cruel, oppressive government and bring peace and equality to all humankind. No pressure. less

In this epic sequel to Once & Future, Ari and her Rainbow knights must pull off a Holy Grail heist thousands of years in the past -- without destroying their own destinies. Ari Helix may have won her battle against the tyrannical Mercer corporation, but the larger war has just begun. Ari and her cursed wizard Merlin must travel back in time to the unenlightened Middle Ages and steal the King Arthur's Grail -- the very definition of impossible... moreIn this epic sequel to Once & Future, Ari and her Rainbow knights must pull off a Holy Grail heist thousands of years in the past -- without destroying their own destinies. Ari Helix may have won her battle against the tyrannical Mercer corporation, but the larger war has just begun. Ari and her cursed wizard Merlin must travel back in time to the unenlightened Middle Ages and steal the King Arthur's Grail -- the very definition of impossible. It's imperative that the time travelers not skew the timeline and alter the course of history. Coming face to face with the original Arthurian legend could produce a ripple effect that changes everything. Somehow Merlin forgot that the past can be even more dangerous than the future. .. . less