Tabitha and Wolf should be relishing the quiet joys of new parenthood when yet another investigation calls them away.
Lady Arlene Archibald approaches Wolf with a troubling request. An elderly stranger from Grenada has arrived in England with letters from her grandfather, once a wealthy plantation owner, and from Hana, the house slave he married after emancipation. The letters speak of a promise: money placed with a Bristol charitable organisation to build a school in Grenada for the children of the formerly enslaved. The school was never built. Instead, the funds seem to have vanished into the so-called charitable world that now venerates Edward Colston as the city's greatest benefactor.
A nonconformist minister in Bristol invites the Grenadian man to speak and expose this betrayal. Before he can share his story, he is found dead.
Despite the righteousness of the cause, Tabitha cannot quite banish her unease at Arlene's summons. Now, Tabitha and Wolf must unravel a murder and a broken promise at the heart of respectable Bristol.
