Harry Potter's sister ~~~ Fanfiction

How did he come in?? part 89

The Blasting Curse bounced off of Dumbledore's shield and impacted the ground far away from the two of them, not hurting anyone or anything.

"Professor?" said Harry in shock. He lowered his wand, all the while Mopsus kept on moving around his legs.

"Please calm yourself Harry." Urged Dumbledore.

"Sir, Black… he… he got into Gryffindor Tower…"

"I am aware of this. Where did he go?" asked the headmaster.

"I… I don't know. I followed him to this general area but I lost him." Said Harry.

Dumbledore cast his eyes around him and shone light out of his wand. Harry too, kept his eyes open.

"It would appear Sirius has eluded us for now." Commented Dumbledore. "Come, it is neither safe nor healthy for a boy in his pyjamas to be out in this downpour."

Harry blushed and realised only now how cold and wet he was. He picked up his sister's Kneazle and allowed the Headmaster to escort him back inside.

They proceeded to Professor McGonagall's office, where he and Dumbledore met up with various members of staff in their nightwear. After a warming charm to his drench clothes and a Pepper-up Potion from Madam Pomfrey, he sat down with Mopsus on his lap and told them how he'd encountered Black in at the Portrait Hole and then chased him down to the Grounds.

"And it would appear you damaged a great deal of the castle in the process." Sneered Snape.

"Severus." Said Dumbledore warningly. "I think you shall agree with me, the damage done by Harry was entirely reasonable given the circumstances."

"Besides which all the damage will be completely gone by morning." Said Professor McGonagall. "Most of it has already been cleared up."

"Do you have anything further to add Harry?" asked Dumbledore.

"How did he open the portrait door?" asked Harry.

"I have spoken with Sir Cadogan." Said McGonagall. "Apparently Black knew the password. How he learnt it is beyond me, especially as Sir Cadogan keeps changing it."

Harry's eyes widened. It suddenly occurred to him that only one of his alarm spells went off. The one outside the Portrait Hole, the one at the far end of the corridor, didn't. It wasn't possible for one to get to Gryffindor Tower without setting off that alarm. Except on…

"It's Sunday." Said Harry.

"Mr Potter?" Said Professor McGonagall.

"It's Sunday."

"What is the relevance of that Potter?" said Snape.

"On Sundays there is a passage way that leads from the Entrance Hall all the way up to Gryffindor Tower. Black didn't enter from the far end of the corridor, if he did he would have set off the alarm I set up there. He must have waited behind the secret passageway, he probably heard the password when you came in to tell us all to go to bed."

"Well Potter your mind seems to work in peculiar ways, although I'm not sure work is an appropriate term." Sneered the Potions Master.