The Cruelest Chaos by K.V. Rose

Maverick “Mayhem” Astor is a cruel boy.
Ella Christian isn’t exactly a kind girl.
When their paths cross unexpectedly in the middle of a cold night, a war begins. A silent, vicious battle that rages on between two hearts carved from stone.
Who will bleed first?
Who will kneel?
Who is truly furthest from God?
As the Unsaints and the 6 pick up their broken pieces and attempt to move on from a horrific past, Maverick holds on to more secrets than he can carry, driving him away from his brothers.
And Ella? She wants to crack all of his dark secrets apart. Light them afire. Watch them burn in flames. Because Maverick may be sadistic, but Ella…well, she likes the pain.