Imagine Person A singing "Safe and Sound" while dying from their wounds with Person B.

(A/N: Apologies for another Guy/Marian one. This prompt could have been used perfectly at several points throughout the TV series. Namely, the ends of season one and season two and with Robin instead of Guy. However, my instant idea to seeing this prompt meant creating an alternate universe for the ending of season three. Hope you enjoy.)

The castle had been infiltrated. Wiping at her face with the ripped sleeve of her tunic, Marian watched as the last townsperson retreated through the tunnels and towards safety. From somewhere behind her, she could hear the faint clutter of sword on sword and heavily-armed footsteps above her.

Death was not a new phenomenon to Marian. She had already faced Him off twice before. Both times, she had taken a blade to her abdomen but, as she had proved time and time again, she was not an easy thing to kill. Everything comes in threes, she cautioned herself as the ceiling shook above her, and this time, she was not the only one in danger.

Hurried footsteps from down the tunnel signalled the arrival of a breathless Kate.

'They're through,' she gasped, grabbing onto the other woman's wrist. 'We should go now.'

'I can't,' Marian looked back. 'I need to know they're coming.'

'It's not safe. Robin said-'

'Wait here.' Marian backed away, breaking away from the other girl's grip. 'Stay here. I'll be a moment. If anyone comes, just go.' Spinning around, she ran off back through the dungeons as Kate called out behind her.

Up ahead, she could just make out a group of people fighting. Pulling her own blade out of its scabbard, she slowed her pace, squinting through the darkness. At one moment, one figure seemed in charge, standing over a stationary body with his sword raised and then another figure appeared and over-powered him. Raising her sword, she prepared herself. What was it that John was always saying? Today was a good day to die?

As she neared the group, already she could sense something was deeply wrong. The first face to meet her, coming rapidly towards her, was a grim Archer, who took her by the arm and began to lead her back towards the tunnels.

'Stop it,' she shouted. 'Get off of me.' She smacked his hand away but he only grabbed her wrist tighter.

'The Sheriff and my sister,' he spat, 'were there already. We managed to fight them off but Robin is injured. It's probably nothing.' He added hastily as he watched Marian's face fall. 'It's Guy though.'

Freeing herself from Archer's grasp, Marian sprinted back through the tunnel as Archer swore and ran after her.

'I couldn't stop her-' he began.

'Robin,' she panted, dropping her sword to the floor as she fell to her knees beside Robin and Guy. 'You're bleeding.' To her horror, his entire neck was covered in blood.

'It's nothing,' he said, wiping away at his neck. But Marian could not ignore the look that passed between him and Guy.

'What is it-?' Her question though died on her lips as Guy screamed out in pain, rolling onto his back as his body seized in spasm. His hands frantically began to claw at his abdomen. 'Robin?' Her husband shook his head softly. Marian had been stabbed in a similar position previously yet she owed her life to experts. In this dank dungeon, there was no hope. They had only minutes left.

Supporting his former enemy's upper body, Robin helped ease him back into a more comfortable position as Marian pressed her hand helplessly against the wound. No matter how hard she pressed, the blood just would not stop. She could see Guy's lips moving, pressed against Robin's ear, but she could not make out what he was saying. Robin listened and nodded before gently easing Gisbourne's body to the floor.

'Archer will need my help but I'll only be a shout away.' He stood up, taking a moment to kiss Marian's forehead before dazedly walking away. They were alone.

'I always wondered how I would die,' Guy whispered, his voice barely audible as Marian crawled to his side. 'At least I could die doing something right.'

'Please don't say that-'

'I only ever wanted you to be proud of me… To love me.' His blue eyes, dull with pain, gazed up at her. 'I thought… that I could win you over with power… with wealth. It took me years to realise and so much anger to realise that you're worth more than that. You don't need a person to look after you… You need a person to be your equal…' He groaned then and Marian stiffened. 'I hope… that in these last few months… that I came close to being that.' The spasm ended and he relaxed back against Marian's lap. Silent tears rolled down her cheeks.

'I'm sorry for all the times I hurt you… For destroying your home… For almost killing you. You were- the last person… in the world… who I wanted to hurt yet I hurt you…'

'I hurt you too.'

'You were only… following your heart.' Weakly, he lifted his hand and brushed a tear from her cheek. His hand then lowered and cupped the slightly curve of her stomach. 'When were you going to say?'

'Soon,' she whispered.

'He'll be a good man… with you two for parents. Look after him… Teach him that… hatred only consumes you…'

'I will.'

Guy was visibly waning in front of her. 'Sing to me… One last time… Please.'

Swallowing back her tears, Marian began to sing, a song she had thought she had long forgotten. But in the depths of this bleak dungeon, with this man's, her Guy's, life flooding out before her, the words returned.

'I remember tears streaming down your face
When I said, "I'll never let you go"
When all those shadows almost killed your light
I remember you said, "Don't leave me here alone"
But all that's dead and gone and passed tonight

Just close your eyes
The sun is going down
You'll be alright
No one can hurt you now
Come morning light
You and I'll be safe and sound'

As she neared the end of the chorus, she could sense him slipping away from her. As the chorus ended, the light faded from his eyes. Gently easing his body to the floor, she studied the face of the man whom she had loved but had just not loved enough. She brushed the hair away from his face; closed his eyes. Leaning down, she pressed her lips against his, feeling warmth still but yet no breath against hers.

Through a thick haze of tears, Marian managed a faint smile. He was at peace, at last.