In the chest is 40lbs of lead and a key with a note. The key is to a safe deposit box and the note says what bank and where. He also has a key to the same box

In the chest is 40lbs of lead and a key with a note. The key is to a safe deposit box and the note says what bank and where. He also has a key to the same box and can check that box whenever he wants. He knows it's found when the real loot in the safe deposit box is gone.