Dan and Amy Cahill have just discovered they are part of the most famous family in history. When their Grandmother Grace passes away, her will sets in motion a treasure hunt, centuries in the making. With the power to shape the world on the line for whoever finds the 39 clues. Alongside their Au pair, Nellie, they must travel the world, competing against their ruthless relatives to stay in the hunt and stay alive.
---------------- Note: Any stories taking place post the events of the clue hunt would not follow the second book series because I do not like what I've read of the second book series so this would create a different canon.
