The Beacon Seekers: The Soldier of The Sun

Olivia Jones isn't ordinary. Everyone talks about the girl, who's presence seems to make everything go haywire. She thinks living normal life is a huge challenge. But when she finds out about the monsters and her true identity, she is obviously in denial.
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There is a reason parallel universes haven't collided, a group of beacon seekers travel across parallel universes, such as hogwarts and camp half-blood, and protect all its inhabitants and make sure they never find out about other universes. So naturally they have an enemy who just so happens to have a whole army out there....