Ten-year-old Parker Collins never encountered a man-eating snake, a transforming rat or slimy acid creatures bent on destroying him and his family. But life as he knew it was about to change. Following the tragic death of his father, Parker, his twin sisters Paige and Patsy, and their mother Eliza are forced move to Blackhawk Estate, the home of their estranged and mysterious grandmother Charlotte. As they settle into her home and start to form new relationships, strange things begin to happen. Soon, Parker, his sisters and a cousin named Jacob realize that Grandma Charlotte and her relatives who live down the street are not normal, elderly women. They control the power of six precious jewels each with its own magical power. These jewels are the key to unlocking a tomb of the warlock, Banderous. Parker must battle the evil warlock and avoid being struck by the Curse of Serpent Staff. If he fails, his entire family and the magical jewels will be lost forever.