This is book 7 of the Eternal Flames series, you should read Eternal Flames 1-6 and book 1-2 of Eternal Flames Maddox before this book.
 
Manny has had a hard life, but when he is taken in and adopted by Angelo and Morgan, Manny thinks his life is finally on track. That is, until he is kidnapped by a green man who tells Manny that he’s not who he and everyone else thinks he is. The truth of who Manny really is sends him spiraling out of control and he is terrified that when his new family finds out, that he will lose everything and everyone he loves.

Frankie has always thought Manny was sexy as hell, but he was way too young, and just happened to be one of his closest friends' son. However, when Manny is rescued, Frankie can't help but notice the change in the young man.

When the two discover they are mates, Manny and Frankie must work together with their friends to find answers, before the Phoenix Rising gets Manny killed.