As I recall, I wound up picking up In A Fix by Linda Grimes because the review of the second book sounded interesting.
Given how mediocre the first book is, I doubt I'll find out how true that statement is.
Ciel Halligan assures us early on that she's not a shape shifter, but constantly shape shifts throughout the narrative. She does so by borrowing people's auras and becoming them. Which aids her in her job as a "facilitator", wherein she takes over the life of a person in order to facilitate something they themselves can't do. At the start, she's impersonating Mina, a well-to-do socialite trying to get her boyfriend Trey to propose to her on vacation in the Bahamas. Which is fine, until the cabin they're co-habitating explodes.
This is when we get to meet her "brother" Billy. (Her mom's best friend's step son.) Billy, of course, is dolled up as Queen Elizabeth II. We hear about how close knit the adapter community is. We meet her other "brother", Mark, who's a CIA spoook, and we eventually meet her biological brother Thomas, the lawyer.
And we get fed a silly plot about neo-Vikings trying to get Sweden to man up. We get some really bad erotica, and a female author who obviously has no idea how male parts work. (Which wouldn't be a big deal, but one of the bits involves Ciel adapting to become a frat boy with a twitchy penis.)
And honestly, even if the book remains readable and mostly interesting, it's very hard to get past the narrator telling us she's not a shapeshifter and the spending several scenes shapeshifing to escape from any number of women in jeopardy cliches.
That, coupled with the mildly incestuous love angles, really didn't endear me to the idea of reading another book in this series.