Harry's Viewpoint
Harry was concerned by how calmly Percy seemed to be it all in. Harry did however sense a lot of repressed anger and frustration. Thinking about it perhaps he had been to aggressive on Percy earlier. Percy was probably used to stability in his life while he, Harry, was used to the change that came with his lifestyle. Harry decided to to bring up some food from the Great Hall up to Percy.
"Hey Percy? Can you let me in?" Harry took a deep breath and sighed, it didn't seem like Percy to hide from his problems. Then again, did Harry even know Percy? If that was even his real name. What hadn't Dumbledore, Lupin and Snape change about his brother? Harry decided to try again.
"Look, I get that you're mad but we need to talk about it. Please let me in."
A terrible thought crosses Harry's mind. What if something was wrong with Percy? Harry has heard about wizards going into shock after a traumatic event. There were about a dozen students that were currently under the care of Madam Pomfrey in the Hospital Wing. Harry thought 'show me Percy Weasley uh I mean Potter'. The door flew open and Harry screamed.
Kingsley's Viewpoint
Kingsley had just finished signing some very important paperwork down the hall from the Room when he heard a scream. He was concerned that an escaped Death Eater might be causing trouble again. Kingsley grabbed his wand and found that he was able to apparate directly in front of the doorway. He made a mental note to get Flitwick and the other teachers to have the protective charms re-casted on the school. Kingsley found the door wide open and Harry clutching onto his brother. He ran in and felt Percy's forehead. Percy was breathing lightly and he didn't dare move Percy until Madam Pomfrey took a look at him.
"Harry, get Madam Pomfrey and tell no one what has happened." Kingsley tried to remain calm but something was terribly wrong. He looked at the younger wizard and noticed the panic that was taking over. Harry ran out and Kingsley signed. There were just too many things that had gone wrong.
The matron walked in and for a second it looked like she might faint. Her face was ghost white and she took in short and sharp breaths. She examined Percy and her face turned into mask.
She turned to Kingsley and said "Seal the doors. Put up the enchantments, this room is not secure." The Minister picked up his wand and sent a message alerting the Order members not to worry and that the four of them were working on something top secret for the Ministry. He began the usual enchantment and counted on the Room to the rest.
"Alright, what is wrong?" Kingsley asked.
"You see it is a delicate situation..." The nurse began.
"TELL ME WHAT IS WRONG WITH MY BROTHER!" Kingsley had forgotten that the youngest Potter was in the room until his outburst. Madam Pomfrey looked like there was no other place that she would like less to be. She levitated Percy and placed him on the daybed that had reappeared.
Harry's Viewpoint
The healer took a deep breath and began, "Well, as gifted as Albus and Severus were they both make mistakes. Perhaps we can credit the error down to a miscommunication. The spell was casted perfectly with only one flaw. Albus never thought that it was necessary for Percy to know his true identity. This part of healing is still in experimental phase but, from what I gather Albus didn't leave shall we say a back up plan in case Percy was alerted of his true family. Albus didn't expect that Severus would ask Harry to tell Percy. As of right now Percy is simply in a state of shock."
Harry exhaled the breath he didn't realize he was holding in. Harry relaxed onto another sofa that had appeared. Then he noticed something, what was that white vapor was coming out of Percy and lingering mid-air right above his chest.
"Madam Pomfrey? What is coming out of my brother?"
"Oh, dear. Oh, dear. We have a complication. We need someone."
"Who do we need?" Harry asked. Harry was ready to tear the world apart.
"Can I help?" A voice said from outside the door. It was the last voice Harry expected to be at Hogwarts.