Induction (Sid & Sin #1) by T.K. Eldridge

Book 1 in the The Sid & Sin series

They weren't supposed to exist.
Sidonie & Sinclair Boudreau were the offspring of a witch and a shifter. Such pairings usually resulted in death. Sid & Sin had not only survived, but thrived, and managed to sidestep the family legacy of supernatural policing.
The disappearance of their parents changed everything. A cryptic message, an ancient prophecy, and a mystery to uncover in order to bring their parents home puts the twins in the crosshairs of an enemy they didn't know existed.
What would you do to save those you loved?
Fans of paranormal mysteries will love this fast-paced, five star ride!

“T.K.Eldridge has a relaxed, conversational writing style that pulls her urban fantasy characters into the real world and makes them both believeable and relatable. In this series the main characters are engaging twins, considered outcasts by some family and friends because of their “mixed race” witch and shifter blood, with a few other supernatural races mixed in. Sidonie and Sinclair Boudreau, otherwise known as “Sid and Sin,” are young adults just coming into their own, learning to navigate their magical skills and impulses as they deal with unknown forces threatening their lives and those of their loved ones and the community at large. Eldridge's knowledge of law enforcement informs the plot, adding to the sense of reality in an otherwise unreal world. An an enjoyable read that will keep you entertained and wanting to know what's next in the lives of Sid and Sin.” – JTBlunt, Amazon Reviewer