Murder most treasonable
"London. March, 1382. Deep in the shadows, a clandestine organization known as the Secret Chancery operates under the sinister leadership of John of Gaunt's Master of Secrets. When two clerks from this covert group meet their demise in suspicious circumstances, friar-sleuth Brother Athelstan is urgently summoned to unravel the truth behind their deaths. A puzzling question lies at the heart of the investigation: how did the killer manage to navig...