Midnight Ride is book by Catherine Hapka in the "Gates Family Mystery Series" published in March 25, 2008 by Disney Press.
Synopsis[]
John Raleigh Gates wants nothing to do with ancient treasure. For too long he has been embarrassed by his father's obsession with hidden wealth and coded messages. And now that the American colonies and Britain are on the verge of war, John is more concerned about the future than the past.
So when John's job as a post rider puts him in contact with a group of Patriots, he sees it as his chance to make his own mark in history. But a dying man's last words quickly thrust John into a hunt greater than any his father could imaging. As the colonies prepare to fight for their independence, John must set out on the ride of his life and find a treasure that could help make a nation.