Just as everyone was getting ready to leave, Merlin came back, an unconscious Morgana floating behind him. Merlin's face was set in a grim expression.
"What happened?" asked Arthur.
Merlin took a deep breath. "My control over her magic lapsed, when I was healing Odin, and she tried to escape. Kilgarrah knocked her out. Arthur...it's your decision as to what to do
about her now."
"I- I don't know," said Arthur.
"Well," said Merlin with a sigh, "I'll keep her unconscious until we get to Camelot, because I don't know how to summon the Gean Canah."
"Okay," said Arthur solemnly.
During the ride back to Camelot, Merlin felt torn between his thoughts and emotions. Arthur would probably want to take her magic, and although logically Merlin knew that would be the best choice, another part of him kept insisting that he would be condemning Morgana to a fate worse than death.
Finally, they got back to Camelot. After Gwen and Arthur finished their rather enthusiastic greeting, Merlin walked over to Arthur.
"So what's your decision, Sire?" asked Merlin.
Arthur's face became serious. "Take her magic," he finally said.
Merlin brought a sleeping Morgana up to Gaius's room. After making sure she was soundly asleep, Merlin brought out his spell book and flipped through the pages, looking for anything about the Gean Canah. After a while, he finally found what he was looking for- a spell to summon the creature and use it.
"Aweax þu meteþearfende! Þicge þu þone drycræft þe þinan deorcan mode gefylþ," he said, his eyes flashing gold.
A spot above Merlin's outstretched hands started to glow white. It grew brighter and brighter until Merlin had to look away. There was a small explosion, and a large, dark, slug-like creature dropped into Merlin's hands.
Merlin placed the creature on Morgana's chest, and it slithered up to her face. A white mist started to seep out of Morgana's mouth and into the slug. The mist continued to move away from Morgana towards the Gean Canah for a few minutes, before the mist faded away, and Merlin let out a deep sigh. He had just taken away Morgana's magic.