"RUN HARRY, RUN!" shouted Hermione as she turned to glance at the beast chasing the pair of them. "WE'VE GOT TO SAVE SIRIUS, WE DON'T HAVE A LOT OF TIME NOW, DO WE? RUN!"

And Harry Potter certainly did run. They eventually found their way to a clearing on the shore of the lake, to which Harry waited for his father to cast his Patronus Charm to save himself and his godfather. However, his father did not arrive, being obviously dead. Harry, in a moment of pure desperation, shouted "EXPECTO PATRONUMMMM!"

A shining blue stag rose from Harry's wand. The stag looked like a being of pure hope and joy, reflecting the bright light of the full moon on its body. A large shockwave ripple across the lake, sending the Dementors scattering away from the two wizards. It was, not, however, a time to celebrate.

The beast that had mere moments ago been Professor Lupin growled loudly as it pounced towards the duo. "STUPEFY!" shouted Hermione. "ARRESTO MOMENTUM!" shouted Harry. Both spells failed to hit the wolf, and, in the case of Hermione's spell, only momentarily stunned it. Lupin lunged at Hermione, and a shriek was heard throughout the entire forest for miles around as a canine sharp enough to bite a glacier sunk into Hermione's arm. Hermione continued to shriek as the beast began to scratch at her, until Buckbeak arrived. Clearly thankful for their rescue of him before, he attacked Lupin, sending him away from the duo, and carried the victorious Harry Potter and the wounded Hermione Granger to Sirius Black's cage at the top of the castle. The free Hippogriff carried its new passenger along until landing at the Hogwarts Courtyard. As Sirius Black said goodbye and thanked his godson and his friend, he flew on Buckbeak into the moonlight.

Harry and Hermione both made their way back to the hospital wing, where a severely injured Ron looked up to see both of his friends enter. "So, what happened?" said Ron

"I've got good news and bad news." said Harry. "Sirius Black is a free man now, but as for the bad news…"

"I got bitten by Lupin" interrupted Hermione. "I was going to mention that Pettigrew escaped…" Harry thought to himself.

"Gobstoppers." Ron shockingly exclaimed. "So you're a-"

"Werewolf. You guessed it right."

The only words Ron could think to say were:

"Bloody hell…"