The Last Treasure Paperback – Illustrated, November 18, 2004 by Janet Anderson 
 
For thirteen-year-old Ellsworth, family has always been just him and his dad. That’s all Ellsworth thought he wanted. But then the dreams start. Dreams of houses surrounding a beautiful green square. Suddenly a letter arrives, inviting Ellsworth to a home he doesn’t remember: the Square in Smith Mills, New York. A home with a hidden treasure only a child can uncover—the last treasure of John Matthew Smith, the family’s eccentric patriarch. But there are other things hidden in the Square. Can Ellsworth set these ghosts to rest and uncover the family’s last treasure—or will the secrets of the past haunt him forever?
 
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