SPOILER WARNING! This review may contain some spoilers for the plots of the two volumes in question.  In volume 4, Keys to the Kingdom, the three Locke siblings are still fighting against the Dark Lady, whose inhabiting the body of the person they think is their friend Zach. He’s posing as Kinsey’s affectionate boyfriend and Tyler’s loyal friend, trying to get one of the siblings to reveal where the crucial and powerful Omega key is hidden. Over the course of this volume, the Locke children seem […]