AN: There are so many stories wherein Arthur loses his memory but I don't think I've read any in which Gwen loses hers. This is based on a suggestion from arthurgwen2010 who asked for a memory loss story and though this isn't quite what she asked for; I hope it's sufficient.
The major kick in the teeth was that the accident had been so preventable. Gwen had been carrying a large pile of sheets; the way she had at least a million times beforehand and was making her way towards the laundry when she fell. Gwen had been walking up the stairs and bumped into Merlin and Gwaine who were laughing about how easily Lancelot had beaten Arthur in training that morning. The collision had happened so fast that by instinct; Gwen had stepped back but lost her footing. Merlin and Gwaine both reached out a hand to stop her falling but it was too late as Gwen fell backwards, her head smacking off each step with a dull thack each time before she landed at the bottom. Merlin and Gwaine tore down the steps to their friend and Gwaine lifted Gwen up. Gwen was out cold and there was a growing red stain trickling down her head. Merlin was frozen to the spot; painfully remembering the last time something like this had happened; whenever he had caused Morgana to fall and almost killed her.
"Merlin;" Gwaine said sharply to jolt Merlin out of his trance. Merlin jumped and looked at Gwaine who was holding Gwen's unconscious form. "We have to get her to Gaius, come on."
The two of them hurried to Gaius; Gwen being a dead weight in Gwaine's arms and the sheets lying forgotten on the stairs. Gaius had been treating Arthur for a wound he sustained in training after fighting Lancelot who was hanging around in Gaius' ensuring he hadn't done serious damage to his friend. All three of them looked up when Merlin burst through the door with Gwaine following with Gwen in his arms.
"Guinevere!" Arthur exclaimed; jumping to his feet and ignoring the ache in his shoulders as he took Gwen out of Gwaine's arms and setting her on one of the beds. Lancelot rounded on Merlin and Gwaine.
"What happened?" he asked.
"We were coming down the stairs; she was coming up and it happened so fast. It was an accident I swear!" Merlin replied. "Is she alright?"
"I'll have to examine her closely; just wait outside for a moment; all of you." Gaius said looking at the men who reluctantly left the room. As soon as they were out the door; Arthur rounded on Merlin and Gwaine like an angry wolf.
"If anything has happened to her…" Arthur warned and he didn't have to finish it; there were no limits to the sort of punishments the prince regent could bestow upon them.
"Don't worry she'll be fine. Gwen's tough and Gaius has never failed yet." Gwaine reassured.
After a few minutes Gaius allowed the men to return into the room. Gwen was lying on one of the beds. She was still unconscious but the blood had stopped and the wound was clean and bandaged. There were no other signs of physical damage aside from obvious bruising which would have been caused by the fall but there were no broken limbs as far as they could see. Arthur sat next to the bed and took Gwen's hand as Gaius explained that it would be hard to determine if there was any inner mind damage until Gwen woke up. After a few minutes; Lancelot broke the silence.
"Where's Elyan, shouldn't one of us tell him?" Lancelot asked; wanting to leave. He knew he had no chance with Gwen but it didn't mean he was happy having to see Arthur holding her hand in a way he never could or would.
"He's on patrol with Leon and Percival." Gwaine replied and they lapsed back into silence. After a short while there was a knock on the door and Agravaine entered the room.
"Arthur; Gaius; you were supposed to be at the council meeting ten minutes ago," Agravaine reminded; not paying attention to the fact Gwen was lying unconscious on the bed. Why should he, she was a servant and none of his concern. Arthur looked at Gwen; he wanted to stay by her side but Arthur also knew that if Gwen was awake she would be scolding them all for making a fuss over her. Merlin clapped a hand on Arthur's shoulder. Their friendship was such that Merlin didn't need to say a word. The touch alone said: 'I'll stay with her'. Arthur slowly got up and pressed a kiss to Gwen's forehead before he and Gaius followed Agravaine out of the room. Merlin, Gwaine and Lancelot hung around Gaius' waiting for Gwen to come around. Finally after half an hour; Gwen shifted in the bed and moaned as she came around.
"Oh my head, what happened?" Gwen asked without opening her eyes as she pressed a hand to her head and felt the bandages.
"You went head-first down the stairs." Gwaine answered. Gwen frowned as she sat up and around the room before being reassured by the surroundings and turning and looking at the three men. Whenever she seen them she moved as back as she could in the small bed and held herself in a defensive style; raising her knees to her chest as she studied the three dark haired men before her.
"Gwen calm down; it's just us." Merlin reassured, holding up a hand. Gwen looked from Merlin to Gwaine to Lancelot and her face turned from weary to confused as she studied each man intently but no there was no sign of any recognition to be seen anywhere on her face and after a few moments she asked the only question that came to mind.
"Who are you?"