Here it is, what you've all been waiting for! Sorry it took so long; I've been really busy recently.

I really hope you enjoy this last chapter :) I've finished the epilogue so I'll put that up soon.

Donna stared at Harvey as they trundled along at 20 miles per hour, Ray driving as quickly as he could in the hectic New York traffic. Harvey was bent over in his seat, studying Mike's diary. She could see his expression change every second, from worry to sadness, to happiness, to what looked like pride, then to worry again, as his eyes scanned over Mike's messy handwriting. She couldn't imagine what this must be like for him. Over the past few weeks, she had spoken to Mike a lot, while Harvey was busy working, and he was waiting for him. She had nearly come to think of him as her own son. She hadn't seen him since they had heard the terrible news of his mother's death though.

She glanced over at her boss again, noting the concern on his face. His eyebrows were furrowed, and his jaw was clenched.

"Shit," He muttered under his breath.

"What is it?" Donna asked him.

"'Trev's dad got drunk again today. It's the second time in the last week, and I don't know what to do. Trev keeps telling me that it's nothing, and he never gets hurt that badly, but I don't know. I want to go and see him, but I don't know what to tell mum'," Harvey looked up at Donna. "No wonder he's gone to see his half-brother. He couldn't save his mother, but he can save him. That must be what he's thinking."

Donna's expression was filled with sympathy. Tentatively, she reached out and put her and on Harvey's arm, feeling him shake slightly.

"It's going to be fine, Harvey. We'll find them," She said slowly, looking into his eyes.

"Thanks, Donna," Harvey replied, but his face was still full of anxiety.

"Right, this is No. 18, Bristol Street," Ray said from the front, pulling up onto the side-walk. The whole street looked run down, with old cars littering the streets, and a rubbish tip in the corner, surrounded by bins.

Harvey and Donna got out of the car hurriedly, telling Ray to wait there.

Harvey walked around the car onto the side-walk and looked at the door labelled 18, taking a deep breath in. For the first time in his life he was properly scared, not for himself, but for someone else. He suddenly felt protective; he felt like if that man did anything to his son he would kill him. He looked at Donna, hesitating, and she nodded, urging him on. He walked to the door and was about to knock when he heard a cry from inside. He could just make out the muffled voices.

"Told you… Not to come… Again… My son… How I want to… Get out… Little bastard… My house… Not my fault… Died…" The words were projected by a deep, clumsy voice laced with venom, and loud enough for them to hear from outside the house. Then there was a thump.

Harvey pounded on the door. "Mike?!" He shouted at the top of his voice, hitting the door again.

There was a sudden silence for what seemed like hours. Then: "Dad…" Came a small, weak voice from inside.

Then the shouting started again. "Who's that man out there? Your bastard of a father left years ago. Tell me! Who is it?"

"Let me in!" Shouted Harvey again, pounding on the door again. His fists were sore but he carried on. "I'm his legal guardian and I have a right to see my son!" He knew it was futile, but it was still worth a try.

"…Upstairs… That way… Quick," Harvey heard whispers from inside. He pounded on the door once more and leant against it, his lungs heaving.

"Police?" Donna asked.

"No, I need to deal with this bastard myself,"

There was a look of fire in Harvey's eyes. Donna had seen him angry, but this was different.

She stepped forwards, taking a hairpin out of her pocket and after bending it into shape, inserted it into the lock.

Harvey was surprised, but he didn't say anything. After all, Donna did have a lot of hidden talents.

30 seconds later, they both stepped into the building and ran up the stairs. "Mike?" Harvey shouted.

"In here!" Came the faint reply, from the room at the end of the corridor. Harvey sprinted there, and tried to open the door, but it was locked.

Donna stepped forwards, but Harvey stopped her. "I can deal with this one. Mike, stand back!"

He stepped backwards, then barged into the door with full force. There was a crack as the wood splintered and the door swung open, just about attached to its hinges.

Harvey and Donna rushed into the room to find Mike standing in the corner, a smaller boy clinging onto him. Mike's lip was covered in blood and the area around his left eye was swollen and red. It broke Harvey's heart to see his son like this. And filled him with even more anger for the son of a bitch that did it.

"Dad!" Mike said weakly, his voice full of relief. "It's alright, Trev. He's here to help us," he said to the smaller boy. Harvey ran up to the kids and put his arms around them both, squeezing them tight.

He felt tears running down his face as he held his son, emotion welling inside of him.

"Don't you ever do that to me again, kid," Was the only thing he could manage to say.

"I'm sorry, dad," Mike said, sniffling.

"It's okay Mike, I'm just glad you're safe. But if anything like this ever happens again, you tell me and I will deal with it, alright?" Harvey said, looking into his son's eyes, a serious expression on his face.

"Alright," Mike said, tears welling in his eyes.

"Come here," Harvey said, extending his arms out towards his son.

Harvey and Mike hugged for another few seconds, then pulled apart.

"Here," Said Donna, softly, holding out some tissues to Mike. "We'll get that seen too properly, but for now, this should do,"

"Thanks, Donna," Mike said, but he looked anxious. "Trev's dad's still here though."

Harvey opened his mouth to say something, but a sudden shout came from downstairs.

"Ross! You're gonna tell me right now who those people are, and what they are doing here, or I'm gonna beat the shit out of you and your little brother," Then came slow, heavy footsteps up the stairs, getting louder and louder.

Harvey put his finger to his lips and motioned to the boys and Donna to get behind him.

The man reached the top of the stairs, and a look of surprise and rage appeared on his face. He was holding a baseball bat in his right hand.

"I don't know who you are, or how you got in here, but you're gonna get the fuck out of this house in the next ten seconds, or-"

"Or what?" Interrupted Harvey, taking a step forward.

The man laughed. "You realise I'm the one holding the fucking baseball bat, right? So you get the fuck out and never come back, or this bat will be the last thing you see,"

Harvey knew how to deal with men like this; he'd come across enough in the boxing ring.

"You think? I bet my grandma could beat you in a fight, you ugly piece of shit,"

"Oh yeah?"

The man took a step forward and swung the bat clumsily. He had obviously had too much to drink. Harvey used the large man's momentum to push him into the wall. The man grunted in surprise. Then Harvey grabbed him by the collar. He could smell the alcohol on him. He felt more rage than he had ever felt in his life. He had never seen a man so low, so cruel, so deserving of a good beating. So he punched him, right in the nose. Blood immediately started to flow. The man struggled against Harvey, but he held him firm. He punched him again in the face. And again. Then twice in the stomach. He could vaguely hear Donna say something in the background, maybe to go easy, or stop, but he couldn't. Harvey punched him again in the face, catching his left eye. The man's face was covered in bright red blood.

Harvey leaned in close.

"If you ever come near my son again, I will kill you, do you understand?"

The man nodded, his eyes full of fear. Harvey stared into them with hatred, breathing quickly. Then he shoved him onto the floor.

The man didn't move.

Harvey felt a sudden panic clutch his chest. Was he dead?

Donna came over to Harvey, then knelt down on the flood and took the man's pulse.

Harvey just stared. Then looked at his knuckles, caked in another man's blood. Then he looked at Mike. Just as he was beginning to feel regret, he was reminded of what this man had done. He had deserved every minute of it.

"He's alive, just unconscious," Breathed Donna, her voice filled with relief.

Harvey exhaled. "Good,"

He turned to face his son. "C'mon. Let's get away from here,"

"What about Trev?" Mike asked. His brother's hand was still clasped in his own.

"We'll take him with us for now. Then call social services. We'll sort it out; he's safe now."

Trev looked at Harvey and smiled slightly. He looked nervous.

"That man will never hurt you again, ok?" Harvey said, with surety.

Trev nodded.

"Why don't you get your stuff together and we'll leave."

Trev nodded again, then turned and went back into the room.

"How's your face, champ?" Harvey said to his son.

"It's alright. Hurts a bit," Mike replied.

"You did the right thing, but for gosh's sake, don't ever do it again, ok? I was so worried about you,"

"Sorry," Mike said, looking a bit crestfallen.

"Come here," Harvey put out his arms and embraced his son. He held him tight and stroked his hair softly. He wished he could never let go.