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. He’d said people were trying to kill him, and now he is missing . . .

To discover what happened to Tad, Harry is forced to pick up the threads of his...