Ghosts of Seabrook

Sirena wells a shy and friendly and her twin sister Marine is stubborn and serious their sisters Addison and cousin bucky are very overprotective of them. But sirena and marine have a secret no one but their parents and sister know sirena and marine are ghost abandoned on the wells door step. When zombies join the school can sirena and marine be comfortable enough to show their true self or will they have to hide themselves forever.