Black ship: a Daisy Dalrymple mystery

In 1925, the Honourable Daisy Dalrymple Fletcher, her husband, Alec Fletcher (a Scotland Yard Detective) and their new twin infant children inherit and move to a new, larger house on the outskirts of London proper, in a stage of slight disrepair (thanks to an aged, now deceased, uncle). Set in a small circle of houses and a communal garden, it seems a near idyllic setting. That is until a dead body turns up half-hidden under the bushes of the communal garden, rumors of bootleggers, American gangsters, and an international liquor smuggling operation via black ships turn everything upside down. And it's up to Daisy - well, Alec with some help from Daisy - to find out who the dead man is, why he was murdered and who did him in!