They went back to library, Snuffle at their heels. They couldn't find any helpful on the Black Curtain.

It been weeks since Snuffles arrived, starting the food fight. Harry had started to give up hope that there wasn't a way back. He grew depressed and quieter around his friends. Snuffles noticed and tried to cheer him up at times, harassing the Slytherins in the hall. Snuffles went around with them to their classes, being a very good dog while the teacher was taking. Sometimes he padded around the room, but always was on very good behavior, which surprised Harry. He guessed he didn't want to risk the chance of not being able to hang out with them.

Potions was exceptionally bad for Gryffindors. Snape made sure that when ever he had the chance, he could trip over the dog, or step one of it's toes, or threaten him with the latest potion they were brewing. He gave detention out for the littlest things. It was one day in Potions when they were taking notes that Harry had an idea. Potions was a vast subject, maybe there was a way to change him back through a potion? Or even a magic spell? Why hadn't he though of that before? After class he pulled away from Ron and Hermione and walked up to Snape's desk, Snuffles at his heels.

"What do you want Potter?"

"I want to know there's a way I can change Sirius back with a potion."

"No, there isn't" he said shortly, and turned back to his parchment and started writing.

"What about a spell?"

"Look Potter, I'm very busy and there is no way" he said forcefully. Harry didn't believe him. Snape had always hated Sirius, but would he prevent someone from the Order from becoming human again, one who might be able to fight against Voldemort and his deatheaters? Harry walked out the door without a word

He walked to his transfiguration classroom to see Professor Mcgonagal at her desk.

"Professor Mcgonagal, can I ask you a question?"

"What is it Harry?"

"Is there a way I can change Sirius back?"

She looked tired and took off her glasses. "Harry, the likelihood of finding a way to change Sirius back is none. No one has every come out, so how can anyone have possible come up with a solution? And Sirius is an animagus, who knew he would come back as a dog with no way to change back? It's a very complicated situation."

"But the likelihood of there being a way that hasn't been found?"

"The probability is there," she said softly, "but the likelihood for anyone to find a solution to this is… none,"

"I'll prove you wrong!" he said forcefully. "I will!" and he stormed out of the classroom, leaving behind a distressed Mcgonagal.

***

"Albus?" Professor Mcgonagal opened the wooden door to his office.

"Yes, Minerva?"

"I'm worried about Harry, he seems fixed on the idea that there's a way to change Sirius back,"

"The probability is there," he said with a twinkle in his eyes. Mcgonagal didn't know how he how he did it, but he always knew what was happening around the castle. He probably knew Harry had been scavenging the library for a answers.

"Well, don't you think it's… unhealthy?" she said.

"What do you mean Minerva?"

"Giving him false hope! I'm sure he'd feel heartbroken if he never found a way to change Sirius back!" she said with exasperation.

"No," said Dumbledore, he seemed far off. "I believe that if anyone has the capability of finding a way back, Harry is the one."

***

Harry seemed to grow more depressed when it had been 2 months since school started. Harry hadn't found anything and he spent all of his free time looking. Sometimes he would be staring at the wall thinking, and then suddenly look alive again and look under strange and into unusual places as if the answer was hidden somewhere. But he would always return to that far away look, not paying attention to anything. He grew restless and Ron, Hermione, Sirius, and Ginny noticed he was much quicker to anger than usual. Ginny started avoiding them. Ron and Hermione were always talking behind their hands, throwing Harry looks. Or when he stepped into the room their conversation would cease abruptly. This made him even more angry.

He lay in his bed one night, Sirius sleeping at his feet. He lay there thinking for a long time.

He suddenly got out of bed and grabbed his invisibility cloak, waking Sirius in the process. Harry grabbed the Marauders Map and slipped down the stairs. He crossed the common room and slipped out the portrait hole.

Sirius followed him.