http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Vowing to get her sister Gemma back from the siren sisters no matter what the cost, Harper must face dangers unlike any she's ever experienced. Fortunately, she has Daniel by her side, a gorgeous guy who's devoted to helping her find her sister--and who's immune to the girls' dark powers.