Ryder by Patricia A. Rasey

Chasing down the cartel is serious business. Taking out the kingpin, though, can be downright deadly.

To locate the leader of a ruthless cartel, vampire Ryder Kelley must become one with the locals, leaving no room for mistakes. The plan? Infiltrate the ring, find the kingpin, and get out. What Ryder doesn’t count on is his mark’s stunning niece. Her siren’s blood has him compromising the one mission his MC commissioned him to do.
Gabriela Trevino Caballero is the niece of one of the most powerful men in Mexico. She stays close to home and guards her heart from those who would use her to get close to her uncle. Just when she finds the one man she hopes is unlike any other, Gabby discovers Ryder’s deception.