Get the magic back

His name... Merlin...
'Katie'
The witch turned around. 'What?', she shouted, before she saw what was going on. 'You're...' The angel had touched her friend. '... back?'
Well, that was quick. Can't kill a stone, can you? Well, not without magic. Without blinking even once, Katie raised her wand. She shouted her spell.The statue immediately splattered into a thousand pieces.
'That's what you get!'
Wait, this means... that all this time... she could have just go around killing weeping angels herself? Noo, there were too many. And the dusty cloud that followed the explosion made her blink.
All sudden... there were more of them in the small room.
'Please Indy, tell me you've succeeded. Doctor, come quick... I can't stand, open eyes, much longer', the tears jumped into her dry burning eyes. Two more seconds and she'll be gone as well.
A woeshing sound on the background. ' Now, don't look back. Keep on staring. While you get back into the TARDIS' , Katie said to herself. It was so hard to not turn and run towards the vehicle.
She sighed relieved as she entered it. 'I'll watch if you close the doors', the Doctor told. Katie nodded and closed the doors. But just in case, she focused her eyes on the nearest angel.
'Where is Indy', the Doctor asked.
'Taken. An angel touched her. We need to get to the past, get her back... can you track her?'
The Doctor pushed some buttons. 'It seems like your friend has reached our destination. To a Land of myth, and a time of magic'
Somewhere, just outside the citywalls of Camelot, in the middle of the green, green fields, the young king saw something strange. Out of nowhere, he had seen a strange blue box appear.
'Merlin, did you see that?'
Merlin woke up from his daydream; 'Seen what, sir?'
Arthur pointed at the blue box. 'Over there, it just appeared'
Merlin laughed. 'No sir, things don't just appear'
Arthur forced Merlin to look at the Police Box.
'Oh, that, no I have no idea what it is'
'It's a Policee-box... read Merlin, read if you can', Arthur pleaded. 'Now, it's not my question, what it is, though I have no idea what police means, but how it came here!'
As if Merlin knew. He hadn't seen one before in his entire life.
Katie got out of the box. Her eyes became bigger. This really was her lucky day!
'Merlin!', she shouted as she started running after him. 'Omygosh, I can't believe it's really you! Look at you, you look so young! By Merlin's beard, you don't even have a beard yet!'
The girl had never heard of shame, so she wasn't afraid to hug this stranger to death.
'Does he know you?', Arthur asked surprised.
Katie restored her normal mood. 'Well, no, not yet'
'I don't', Merlin replied.
The doctor got out of the TARDIS. Only Arthur noticed. He wondered if there were any more of those weird people in there. It looked rather small.
'Oh, I see, you've found the great king of Camelot and the greatest wizard', the doctor said.
'Wait? You call Merlin a wizard? He cannot even read properly!', Arthur shouted. 'He's an idiot'
He took a short look at Merlin. Katie was still standing too close to him.
'And why does she talk about his beard. Merlin, are you involved into any of this? Is this a joke?'