Where the heck am I?

Elizabeth Emrys Always prized herself on having the same last name as merlin himself. Yet one day she appears in a luxurious manor. alone.
Is she confused? Yes
Scared? No
Danger is her middle name (literally)
Now she has to live in the wizarding world and Demigod world
that seems easy for someone who knows the storylines.
Rright?
Disclaimer I don't own harry potter of Percy Jackson
Rick Riordan and J.k.Rowling do
I only own some OCs