These groundbreaking expeditions expose important new clues buried in the pockmarked desert of Jordan, including ancient remnants of an industrial-scale copper mine and a 3,000-year-old message with the words "slave," "king," and "judge." King Solomon: son of David, ruler of the first great Israelite kingdom, builder of the first temple in Jerusalem.

The difficulty of producing it may have been why it was largely used for ritual objects and ornaments.

But that small-scale village production is not what Tom has discovered at Khirbet en Nahas.

This was solidified slag, the waste product of metal smelting and on a massive scale.

Nearby, multiple shafts dug through rock and, far underground, tunnels, stretching deep inside the hills.

He has shown how ancient smelters separated pure copper from the ore in which it's found, then spewed out slag, the molten waste product of the process.

The layers of slag reveal an astonishing record of hundreds of years of ancient copper production. Look, right before us we have industrial-scale metal production; layer after layer, almost like a book that, page by page, would reveal the history of metal production at this site.

Tom wants to know about the sources of wealth behind the Edomite kingdom.

His search has led him down from the highlands into the baking desert cauldron of the Dead Sea Rift Valley.

Legends tell of fabulous mines of gold and copper, but where were they? At last, new finds from Solomon's era: ancient cities and the first evidence of early Hebrew writing, clues to the real world of the great biblical king.