Last Payback — James VanOosting

On the worst day of her life, Dorothea "Dimple" Dorfman learns that her twin brother, Dale, is dead -- shot by his good friend, Ronnie Delaney. Everyone says it was an accident. Everyone says the boys were just playing with a gun they found. But none of that talk matters to Dimple. Now that she's the only member of the Twin Protectors, the secret club she and Dale started to stick up for each other, she can't stop thinking about their number one rule: Never delay a payback. And Dimple Dorfman's not about to let her twin brother down.