London: Mantle, in association with Goldsboro Books, 2019. First Edition. 425pp., plus notes. Hardcover: FINE. Dust Wrapper: FINE. #390/700 Numbered Copies. SIGNED by the author. June, 1781. An unidentified body hangs upon a hook at Deptford Dock - horribly tortured and branded with a slaver's mark. Some days later, Captain Harry Corsham - a war hero embarking upon a promising parliamentary career - is visited by the sister of an old friend. Her brother, passionate abolitionist Tad Archer, had been about to expose a secret that he believed could cause irreparable damage to the British slaving industry, and now he’s missing…