Men of the Otherworld by Kelley Armstrong
As a curious six-year-old, Clayton didn’t resist the bite—he asked for it. But surviving as a lone child-werewolf was more than he could manage—until Jeremy came along, taught Clayton how to straddle the human-werewolf worlds, and introduced him to the Pack. So begins this tantalizing volume featuring three of the most intriguing members of the American Pack—a hierarchical founding family where bloodlines mean everything and each day presents a new, thrilling, and often deadly challenge. For as he grows from a wild child to a clever teen who tests his mentor at every turn, Clayton must learn not only to control his animal instincts but to navigate Pack politics—including showing his brutal archnemesis who the real Alpha is.