Teenagers Billy Mac, Emmett, Maddie and Joseph are back in this sequel to "The Mystery of the Tomahawk Pipe". It is 1925, a year after their adventure began. Warm weather and low water levels finally allow them to venture back into the flooded cave. They find Tecumseh's gold really was hidden there at one time, but it has since been moved. Who moved it, why, and where is it now? The four friends must battle time and the treachery of an old adversary to find the treasure. But, danger, deceit - and even death - counter their search for answers. With the help of an unlikely band of ragamuffins and Billy Mac's newfound guardian spirit, they unravel a trail of clues that lead them to the truth, but the cost is high.In this adventure built around the real-life legend of Tecumseh's hidden gold, everyone from the original story is back. Together, they discover not only the secret of the gold, but truths about themselves, as well.