<p>While working for his father at the Old Cooper Place Billy discovers there&rsquo;s more to the property than just a rundown house dilapidated garden shed creepy cellar and overgrown backyard.</p><p>Rolling his rock-filled wheelbarrow over a small hole in the ground it sinks into a much larger hole crashing upon a macabre discovery that uncovers a myriad of clues pertaining to an ancient local mystery and possible treasure.</p><p>But Billy wants to solve the puzzle on his own and encounters a number of obstacles as he strives to keep his newfound discoveries from his dad and nosy best friend Jackie.</p><p>The difficulties mount when Billy&rsquo;s band of friends decide to build a fort near the Old Cooper Place in a large tree overlooking the freeway that becomes front-row seats to a sinister caper putting Billy in even greater danger than he or his friends ever could have imagined.</p>