September 1613. In Belvoir Castle, the heir of one of England's great noble families falls suddenly and dangerously ill. Within a few short weeks he will suffer an excruciating death. Soon the whole family will be stricken with the same terrifying symptoms. The second son, the last male of the line, will not survive. It is said witches are to blame. And so the Earl of Rutland's sons will not be the last to die.