No mercy / Roberta Kray.

Maddie Layne's life hasn't been the same since her sister was murdered. The police never found Greta's body so all Maddie was left with was unanswered questions - and her orphaned nephew, Zac, to look after. She works hard to make sure Zac has everything he needs; she even tends graves for some extra cash. Maddie isn't looking for any trouble. Lucy Rivers died decades ago under suspicious circumstances and the people responsible believe the entire affair is over. And then the mysterious Cato hires Maddie to tend to Lucy's neglected grave. Maddie starts asking innocent questions, but when she learns that the deaths of her sister and Lucy are linked she knows she must dig deeper. Lena Gissing, matriarch of one of the East End's most vicious families, has a vested interest in making sure the truth stays buried. She's not about to let a nobody like Maddie Layne get in the way ...