Bruiser

I found the closeup on the cover of this book of one of the main characters, Brewster, to be very intriguing. Can you tell how mysterious he is just by looking at his profile? Can you see how shy and withdrawn he appears? Does he look like his life might be very interesting yet also troubled?
Tennyson and his twin sister Bronte are at odds with each other when Bronte befriends the shy and withdrawn classmate Brewster Rawlins known as "Bruiser". Tennyson is very protective of his sister and becomes very concerned when he spies on Bruiser changing in the locker room after P.E. and notices that his back is covered in scars and welts.
Bronte continues her relationship with Brew, drawing him closer to herself, Tennyson and even her family. What effect will this closeness have on her parents' troubled marriage?
Is he being abused as the scars and welts would indicate or his uncle telling the truth when he swears he has never touched Brewster. What role does Brewster's younger brother Cody play in this very interesting novel. What special powers to heal does Bruiser have?