The ShadowRealm

Fana Diner is not your normal human. In fact, she isn't even human at all.
Fana was one of the few in the world that was born with her life entwined in the ShadowRealm. She, as her parents did before her, must train to become a warrior of the night and protect man kind from all the creatures you hear about in horror movies. But it's not until she turns seven that she finds out that she is meant for greater things when her parents put her baby brother in her arms and send her on her way. After roaming the streets with no where to go, she is found by a woman, Jane, and what looked to be her son, Felix. Now the four of them live in an institute in London, England, training in combat.
Now, ten years later, while doing a routine drill in the institute, her brother, Dan, goes missing. Fana, Felix and Jane have to find Dan before the ghouls rip him apart.
Or will it be too late?