Puddles in the Pavement - Tales from the Noctuary, #2

What horrors lurk in the puddles in the pavement? Archangels Uriel and Bel investigate when a distraught lady's fiancé falls into a puddle and doesn't come out. But he's not the only one to be dragged into mysterious depths. Foul games are afoot in Victorian London, where a well-demon is turned loose from his underground prison with one mission: to collect victims for the torturous games of an idle, immortal duke. When a single victim from each hunt is returned to their home, word spreads of a deadly wolf, who speaks with the voice of God, striking a new fear into the heart of London. Why was Lady Emilia's fiancé taken when he has nothing in common with the other puddle-snatched men? How can Uriel and Bel get him back? And where is that awful singing coming from? ~~~ This book features a duke with terrible table manners, a Home Secretary with a questionable appendage, and an exceptionally perky butler. This is book 2 of the historical mystery Tales from the Noctuary series, but it can be read as a standalone.
It is part of the wider Cascade Apocrypha story world. Check out the Not the Same River series.