LINCOLN'S GRAVE ROBBERS, by Steve Sheinkin

The story: This is the story of the group of men who decided to pull a heist that would shock the nation--they were going to steal Abraham Lincoln's bones. Meet the counterfeiters, the con men, and the Secret Service operatives who brought them down back in the days when Secret Service was dedicated not to the protection of the President's person, but to the vanquishing of those who made and passed "coney"--fake money. (Because counterfeit money can bring down a nation's economy and well-being just as surely as can a war. Who knew?) They planned to hold Lincoln's remains for ransom, until they received not only a cash payout, but the release of the country's most notorious counterfeiter.