Alliance Series by Emma L. Adams

Few people know twenty-one year old Ada Fletcher is actually from another universe. After a devastating magical war tore apart her homeworld, she and her family were forced to defy the Inter-World Alliance and hide on the low-magic Earth. Stuck in a dead-end job in London, Ada has spent her life hiding her real identity and risking her safety to help others from her homeworld... moreFew people know twenty-one year old Ada Fletcher is actually from another universe. After a devastating magical war tore apart her homeworld, she and her family were forced to defy the Inter-World Alliance and hide on the low-magic Earth. Stuck in a dead-end job in London, Ada has spent her life hiding her real identity and risking her safety to help others from her homeworld. Until she loses her job, is chased by a rampaging monster, and is arrested by the Alliance as a prime suspect for a murder she had nothing to do with. It really isn't Ada's day. Kay Walker, grandson of the Alliance's late founder, expects to spend his first week as an Alliance employee chasing monsters out of the Passages between worlds, not solving his supervisor's murder or questioning a strange, fierce young woman he arrested in the Passages. Killer or not, she's hiding something, and the closer he gets to the truth, the higher the body count rises. The last thing Ada wants is to help the infuriating Alliance guard who arrested her, but it soon becomes clear that the Alliance knows too much about Ada's magic. More, in fact, than she knows herself. Now she has to choose between loyalty to her family, and helping the Alliance save the Earth -- and the Multiverse -- from a deadly enemy. less

Discovering she's a walking magical weapon is just the beginning of Ada's problems.Joining the Alliance might be the key to seeing the worlds she's always dreamed of, but Ada's new job causes a rift to form between her and her guardian, Nell. As she struggles to come to terms with the events of the previous month, Ada is reluctant to use magic again after the damage it caused... moreDiscovering she's a walking magical weapon is just the beginning of Ada's problems.Joining the Alliance might be the key to seeing the worlds she's always dreamed of, but Ada's new job causes a rift to form between her and her guardian, Nell. As she struggles to come to terms with the events of the previous month, Ada is reluctant to use magic again after the damage it caused.Kay, meanwhile, faces his first challenge as one of the Alliance’s offworld Ambassadors - helping his colleague, Markos, investigate the mysterious death of the centaurs’ king back on his homeworld of Aglaia. When they realise magic is involved, Ada is pulled into the investigation. But tensions between humans and centaurs run high, and avoiding a bloodbath will be more difficult than any of them expect. Especially when Kay discovers something about his own magic that could affect the future of the Alliance.Against an enemy they quite literally can’t see, Ada and Kay must face up to the power that almost destroyed their lives… less

When Earth suddenly gains inexplicably high levels of magic, all fingers point at the Alliance. On a distant world, where magic-fuelled forces of nature rule over humans, a disaster is sweeping the land, threatening to knock the Balance across the Multiverse out of sync. When Kay and Ada are sent there with the other Ambassadors, they’re thrown into the centre of chaos. Nature is alive, and angry... moreWhen Earth suddenly gains inexplicably high levels of magic, all fingers point at the Alliance. On a distant world, where magic-fuelled forces of nature rule over humans, a disaster is sweeping the land, threatening to knock the Balance across the Multiverse out of sync. When Kay and Ada are sent there with the other Ambassadors, they’re thrown into the centre of chaos. Nature is alive, and angry. Ada embraces the magic she still half-fears, but learning to control it proves harder than she can imagine. Kay, meanwhile, becomes more reckless than ever when testing the boundaries of his own abilities. When faced with living magic, no one is safe from its influence. Ada and Kay must choose what they’re willing to risk for the sake of saving a world that might already be doomed. Can mortals overcome the gods? Collision is the third book in the world-hopping urban fantasy Alliance series. less

Ada is gone, taken by a group of magic-resistant warriors with a grudge against the Alliance. Kay is stranded on Earth, with no way to reach her. But he won’t accept that Ada is lost. Ada refuses to resign herself to her fate as a weapon of the Stoneskins. Tapping into her own magic might be her key to escape, but now she’s in an unknown world, far beyond the reach of the Alliance... moreAda is gone, taken by a group of magic-resistant warriors with a grudge against the Alliance. Kay is stranded on Earth, with no way to reach her. But he won’t accept that Ada is lost. Ada refuses to resign herself to her fate as a weapon of the Stoneskins. Tapping into her own magic might be her key to escape, but now she’s in an unknown world, far beyond the reach of the Alliance. And the tyrannical, dangerous StoneKing has his eye on her -- and her magic -- for reasons she never could have seen coming. Kay puts his job, and his life, on the line to get to Ada. But with powers shifting inside and outside the Alliance and an old enemy waiting in the shadows, the countdown to war has begun… and Ada is right at the centre. less