Easy prey
(Book)

"When she's attacked by animal traffickers in the zoo she's been brought on to rehabilitate, Elise Tanner begins to doubt the wisdom of returning home after decades away. Especially because her self-appointed protector is US Marshal Jonah Rivers. Jonah isn't just the brother of her dead husband. He's the man who's consumed her dreams for far too long. Jonah needs to come to terms with Elise's long-held secrets--including the fact that he's now uncle to a teenager. But Jonah and Elise have more pressing matters: conquering the dangerous forces around the zoo before they fall victim to them." --,(Source of summary not specified)