Death by the Thames by Anita Davison

Flora Maguire's life is perfect - a beautiful home in Belgravia teeming with servants, a loving husband, and new baby Arthur to enjoy. But when she is invited to tour St. Philomena's Children's Hospital in a deprived area near London's newly-built Tower Bridge, she is shocked.
Because there she uncovers a scandal with a dark heart - poor children are going missing from the hospital. The police seem either unable or unwilling to investigate, so Flora teams up with the indomitable matron of the hospital, Alice Finch, to try to get to the bottom of it.
Soon Flora is immersed in the seedy, dangerous underbelly of criminal London, and time is running out to save the children. Will they get to them in time, or was their fate decided the day they were born...
Previously published as The Forgotten Children.
Readers love the Flora Maguire series: 'I thought it really evoked the era. And the atmosphere of an ocean-going cruise lent itself well to a murder scene. And you can quote me on that!' FAITH MARTIN.
'Wow! I was kept guessing right to the end. A great read and I will be looking out for more of this author's work!!!'
'I'm a big fan of this author's work, so I was excited to read the first instalment in her new mystery series. It did not disappoint. Along with the sparkling dialogue and likeable characters I have come to expect, I found an intriguing, page-turning whodunnit.'
'With intrigue heaped upon intrigue [this] is certainly a great whodunnit that kept my attention from start to finish.'
'This is definitely a 5 star! Highly recommended!'
'Pulls you in and won't let go!!!'