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"Mary, wake up!" Catherine shouted startling Mary.

"Sorry, I am so tired. I want to go. Catherine, I can't do this anymore. " Mary was extremely lethargic

"No Mary, stay awake. Hey, come on. There is a cute little Detective out there somewhere who likes you. Please stay with me. Your brother will kill me if something happens to you." She hugged her and held her close. "Listen we need to take action, no one is looking for us and it's time we try something. Take this pipe and hit that piece of metal. Make a lot of noise. I am going to dive down and see if I can find a way to get that piece of concrete to move just enough to squeeze through. Got it?" Catherine ordered.

"Yeh, but you tried to move it before and couldn't." Mary had lost all hope.

"Mary, I just want to try again. Listen… do not stop making noise. Maybe someone will hear. Promise me." Catherine was afraid that once she tried to move the concrete brick that had trapped them; the other debris would fall and crush her. This was the only chance they had. At least Mary would be able to get out. "Mary, listen to me. When I move the block, swim out then up. Do not wait for me, just go."

"We stay together." Mary looked Catherine in the eyes. She suddenly realized what she was thinking. "No, no way. Catherine, you can't do that. I need you with me." Mary was crying.

"I'll be fine. You can do this Mary. You are strong and smart. Never let anyone tell you differently. I have only known you for two days and in that short time you have become the sister I never had. I love you." She paused "Tell that stubborn brother of yours that I love him, ok?" Before Mary had a chance to respond, Catherine took a deep breath and submerged herself into the water.

She scavenged around in the tight area that they were in and managed to find a short plank of wood. Carefully she wedged it into the corner of the block and using her legs as leverage she pushed hard trying to shift the block enough so that they could squeeze through. It was no use. She re-emerged taking a deep breath and returned to the task at hand. Mary continued to make as much noise as possible.

The divers had managed to recover the other patrons. The task was tedious and heart breaking. The area was getting more and more dangerous, as they moved, the debris was constantly shifting and the tide was rising. There were just two people that were missing, Mary and Catherine. They covered every part that was accessible and nothing; there was no sign of life or bodies. Nichols signaled Steve and Billings to return to the surface.

"Commander, I am sorry, but there is nothing down there. I am sorry, but there is no way they could have survived this long, they must be buried beneath the rubble." Nichols was extremely sympathetic to Steve's emotions but he felt it necessary to be blunt enough to make sure that Steve understood the reality of the situation.

"You don't think I know that they are probably dead! I am fully aware of that possibility! I have to find them either way. If they are dead, I have to bury my sister, my little sister. I have to send Cath's body back to her parents, her family will need closure, I need closure. I have to bury the only woman who I've ever loved. I am not stopping until I find them!" He shouted at the diver.

"Guys! Shut up, shut up! Listen, do you hear that?" Billings shouted over them.

Steve shouted to Danny "Danny! Stop the equipment! We need complete silence!"

Danny ran to the officer in charge of the scene. With one radio announcement to the other team leaders, there was nothing but complete silence. Everyone stopped and listened.

Clang, clang, clang, clang

The three divers looked at each other and immediately submerged themselves in the water. Using hand signals and flashlights they carefully listened as they tried to pinpoint where the noise was coming from. There was a wall of debris. Cement blocks, wood pilling and sheets of metal formed the wall. As they approached the sound got louder and louder. Steve pointed that they must be behind the debris. The three men immediately began moving block by block. They used whatever resource was available to chip away at corners, to wedge pieces away. Slowly they were able to make a space large enough to swim through, only to find another blockage. The sound was getting louder, but the clanging was not as steady. They knew that they were running out of time.

Mary was getting weaker and was finding it difficult to continue her task. The air pocket was now at the point where she had to tilt her head back to be able to get air. The water had reached eye level. Catherine continued to emerge every few minutes, grab a gasp of air and re-submerge. She was making progress, but not fast enough. She was growing tired, her hands and legs were bleeding; this would be her final attempt, as she could no longer hold her breath. Just as she had given up and decided to go back to Mary, to spend their final breaths together, she realized that she couldn't move her leg. The bandage that she had on had come unraveled and was caught between two blocks. She struggled and pulled. She tried to unwrap the bandage, but it was tangled and would not come off. She was trapped. The little breath she had left was gone and as she felt the final heart beats in her chest, she thought back to the evening before where she held Steve in her arms as she slept. She could see the steal blue of his eyes, staring into hers. She closed her eyes and holding on to that thought, she drifted into silence.

Suddenly she felt a tug at her arm and a regulator was thrust into her mouth. She gasped and her eyes opened. All she could see was an arm reaching through the small opening. She recognized that arm anywhere. It was Steve. Taking a few breaths, she began to regain her full consciousness. He passed her a SpareAir tank and signaled for her to stay back. She pointed to her trapped foot. Recognizing her dilemma, Steve signaled with thumbs up and reaching to his ankle strap, retrieved his Shark knife. He reached through the small opening and handed it to her. With one motion, she cut through the bandage, releasing her foot. She immediately emerged to find Mary holding her breath. The air bubble was gone and Mary was on her last breath. Catherine gave the hand held tank to Mary and the two women took turns taking breaths.

Steve and the others tugged and pulled and finally the block had shifted and a large enough space opened up. Steve swam through as debris began to fall. He grabbed Catherine and passed her off to Nichols, as he grabbed Mary and swam away. Chunks of cement and wood fell around them as they passed. They finally cleared the area and emerged from the water. At first there was complete silence as the crowd watched. Danny ran to the water's edge and as soon as he saw Mary and Catherine gasping and coughing, he shouted "They're alive!" Fully clothed, he jumped in and grabbed Mary from Steve's arms.

The Medics approached as they emerged from the water. They immediately placed Mary and Catherine on separate gurneys and strapped oxygen masks to them. They raced to the awaiting ambulance, with Danny at their side.

"Detective, there is not enough room in the ambulance. You cannot come with us, I am sorry" The Medic was adamant.

"That's fine I understand" He responded "We'll be right behind you girls!" He looked inside and Mary gave him the thumbs up as she reached across and held Catherine's hand.

Steve sat on the bed of his truck, with his head down and his hands covering his face. Danny approached throwing a towel on his back and sat down beside him. Steve looked up.

"Are you crying?" Danny was surprised

"Shut up Danny" Steve snarled

"Sorry, hey, they're ok, you know. You did it babe, you saved them" He placed his hand on Steve's shoulder.

Steve got up and walked to the edge of the water looking at the destruction. "I gave up on them Danny. I gave up. I had resigned myself to believe that they were dead. How could I give up so easily?" Steve was distraught

Danny approached "We all gave up, Steve. The fact that they are alive is nothing short of a miracle, A God damn miracle!" Danny paused as he looked at the debris. "You know, we should have known they would survive when no one else could"

"I don't understand" Steve was confused

"Well, they have no choice but to be survivors. One is a McGarrett and well, the other one is a future McGarrett, or is she a mermaid? I forget." Danny smirked and waited for a reaction.

Steve simply looked at Danny and in a brotherly gesture wrapped his arm around Danny's shoulder and pushed him in the water.

"Really? Seriously? I just dried off. How am I supposed to go to the hospital soaking wet? Huh babe? " Danny was not happy, but Steve was quite amused.

A SpareAir tank is a hand held dive tank about the size of a water bottle. It is usually used for emergencies and for free divers as a backup.