Harry, entirely confused looked at Lupin. He didn't understand what he meant.
Sirius's face would have been expressionless had it not been for his concern for Calleigh. For a few moments he didn't move at all. He then slowly raised his empty hand and pointed stray and Ron.
"But then…," Lupin muttered, staring at Black so intently it seemed he was trying to read his mind,"…why hasn't he shown himself before now? Unless" – Lupin's eyes suddenly widend as though he was seeing something byeonw Sirius, something none of the rest could see, "- unless he was the one… unless you switched… without telling me?"
Black slowly nodded as he continued to comfort Calleigh who was now leaning up against the wall, look even worse then Lupin did. Her face was pale she seemed to be very small right then. Her eyes were clouded over with despair and pain and her skin showed faint bruises everywhere and bruises that seemed to be newer.
Harry was going to ask a question, but what he saw made his voice die in his throat. Lupin was lowering his wand, gazing fixedly at Sirius and then lifted him to his feet and embraced him like a brother.
"I don't believe it!" Hermione screamed.
Lupin let go of Sirius and turned to her. She had raised herself off the floor and was pointing at Lupin, wild-eyed. "You – you –"
"Hermione –"
"I didn't tell anyone!" Hermione shrieked. "I've been covering up for –"
"Hermione listen to me, please!" Lupin shouted. "I can explain –"
Harry could feel himself shaking, not with fear, but with a fresh wave of fury. "I trusted you," he shouted at Lupin, his voice wavering out of control, "and all the time you've been his friend!"
"You're wrong," said Lupin. "I haven't been Sirius' friend, but I am now – Let me explain…."
"No!" Hermione screamed. "Harry, don't trust him, he's been helping Sirius get into the Castle, he wants you dead too – he's a werewolf!"
Everyone continued to exchange bouts while Calleigh muttered things about never trusting people again. It had been times like these that she wished she would be a clueless normal person that didn't know a lot about the past like she did.
"How long have you known?" Lupin said turning to Hermione.
"Ages," Hermione whispered. "Since I did Professor Snape's essay…."
"Everyone already knew, at least the staff did. He had to work very hard to convince certain teachers that I'm trustworthy."
"And he was wrong!" Harry yelled. "You've been helping him all the time.
"No he wasn't," Calleigh cried. She was almost at her breaking point. She would have rather been at home getting thrown around by her Uncle then here. She couldn't stand it. "Just, please let them explain."
Somehow that finally got them to listen. Professor Lupin went into a short story of how he knew.
"I couldn't believe my eyes," said Lupin, still pacing and ignoring Harry's interruption. "I thought the map must be malfunctioning. How could he be with you?"
"No one else was with us!" protested Harry.
"But someone was. An Animagus by the name of Peter Pettigrew," hissed Black.
"Your both mental!"
"Ridiculous!" said Harry faintly,
"Peter Pettigrew's dead!" said Ron. "He killed him twelve years ago!"