For centuries, rumors have circulated in England that Lord Protector Oliver Cromwell did not die of natural causes. Now, in a fascinating book that reads like a historical whodunit, we have a motive, a means, a murderer (complete with his own deathbed confession), and a supporting cast that includes John Milton and Andrew Marvell.Almost from the moment of Cromwell's death in 1658, writers and biographers have dismissed suspicions of foul play as little more than the result of a powerful person's unexpected demise. They have assumed that at age fifty-nine Cromwell was in generally poor health a