A metal detecting couple has found an amazing treasure trove of coins. They have unearthed a hoard of silver coins that date from the famous Battle of Hastings. The find is expected to make the couple overnight millionaires and it has made them the envy of detectorists from all over the world. Adam Staples and his partner Lisa Grace, from Derby, were investigating an unplowed farm field somewhere in northeast Somerset when they found the treasure. Their discovery is said to be worth £5 million or about $8,130,000 Canadian.