I really like the Gooding series - Forevermore (book 2) was REALLY good, and whirlwind (book 3) was pretty good. That Certain Spark (book 4) was not. It COULD have been - had a great deal of potential - but it wasn't. There were just too many issues with the book.
(+) I really like Taylor, the female doctor and protagonist. She's smart, stubborn, and has a good sense or humour.
(+) the dialogue between Taylor and her twin brother Enoch is funny and full of energy.
(+) the dialogue between Karl and Taylor is also quite enjoyable, although I often want to shake Karl
(-) the insta-love between Enoch and Mercy was not just unbelievable but also almost revoltingly sappy. I hated the way Enoch totally changed personality around Mercy, and how forward he was with her before they were married or even properly courting. It's not that I'm opposed to physical contact between non-married couples, but this is 1890s Texas, and a big deal is made about propriety (the impropriety of a woman doctor being alone with a male patient is the premise of the book, after all), so Enoch's treatment of Mercy really seems improper. I was really relieved when they got married and we could put their 'romance' aside.
(-) the ending was altogether too abrupt, unbelievable, and generally lazy. For example, the book is about getting enough names on The List (people who would allow a woman doctor to treat them). All the way till the end, there's a bunch of hard-headed people who refuse to put their names on the list. Then suddenly, one of the men changes his mind and puts his whole family on the list, even though previously he refused to let his wife bring the children to the doctor, and suddenly there's not only enough people on the list but more than enough? I mean, i would believe it if this happened after the doctor saved his baby or something, but his baby daughter died as a result of him refusing to call for the doctor, and he still blamed her after! If your baby daughter dying doesn't change your mind about the doctor, why would something much smaller?
(-) there was this whole plot line about how Karl loves Taylor and wants her to marry him, but Taylor feels she's married to her job and can't have a family at the same time (it's not a spoiler; you could tell from chapter one this was gonna happen). I was really looking forward to the resolution of this, because I think it really is a pertinent and serious issue and worth the struggle throughout the book. But then...no resolution, AT ALL. She just suddenly agrees to marry him - where did that sudden change of heart come from? I mean, yes you could tell she really liked him, but all the way until the page before she agrees to marry him, she's really firm on her stance, and NOTHING happens to change her mind. So why does she?! And they don't work out how she'll overcome all the (very valid) obstacles to her having a family AND working that she brought up earlier. I'm honestly fine either way, but you can't just pretend these issues don't exist.
All in all, quite a disappointment. This book had such potential - such a pity that it didn't live up to it.