When Sam Moore discovers a peculiar green marble in his garden, it links him to his vanished little brother and thrusts him back in time, where he battles a faceless serial killer to untangle the maddening mystery and stop the murder of his beloved grandson.
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Now available in all formats. Sam thinks his little brother has been released from his torment, never expecting the green marble to glow again. Ahem. Think again, Sam. See more here.