This book was a little slow to start. However I find that because the characters are so interesting and have their own quirks you find yourself sticking to the story because they’re so fascinating.
When I was reading about Jackaby and his character he bears the resemblance of an unorthodox detective whose social skills are rather lacking (speaks his mind without realizing he’s offending) but who happens to be brilliant at what he does and those in the police force grudgingly accept his help because they have no one else to turn to. So in turn you can see why Abigail is needed in this partnership. She provides the social skills and provides insight on things that Jackaby might miss. Which is why they make an interesting team.
Although he’s eccentric and Abigail may come off as ‘normal’ they both are similar because they both don’t stick to the social norms that society at the time (18th century USA) which is why they make good teamwork. Not to mention, Abigail is also searching for adventure and working with Jackaby provided just that.
The world building is interesting and good. There’s supernatural elements and creatures throughout the city in hiding. Those with special vision (Jackaby) would be able to spot them whereas Abigail accepts this - a little too accepting but going with the notion that she needed to find employment right away to survive, I suppose beggars can’t be choosers. It still ended up being the right choice anyway.
Other secondary characters (Jenny and Douglas) are good fillers to provide more substance to Jackaby’s world. I enjoyed reading about Charlie and I hope he makes another appearance in the next novel.
I would say, stick to the story because of the characters that you end up liking as the book progresses. It does get exciting in the last third of the book despite the lack of momentum in the beginning. It was still an enjoyable read.