"A dangerous secret lies beneath Whitehall Palace... Brother against brother. Father against son. Friends turned into enemies. No one in England wants a return to the bloody days of the Civil War. But Oliver Cromwell's son, Richard, has abandoned his exile and slipped back into England. The consequences could be catastrophic. James Marwood, a traitor's son turned government agent, is tasked with uncovering Cromwell's motives. But his assignment is...