Another short chapter I'm afraid.

Chapter 4 – Professors at War
"Who's there?" A male voice asked, as he wondered down the corridor his wand held out at arms length.
"Quick it's one of the Carrows!" Luna shrieked under the cloak.
"We can't go into the room now Luna when he's around." Hermione gasped.
"Stand right up against the wall." Harry urged.

The group backed up so they were touching the wall with their wands held out.

"Protego!" Hermione cast as quietly as she could, casting an invisble shield around her and her friends.

The death eater walked right passed them twice but didn't even notice they were there.

"Good thinking Mione." Fred commented.
"It might keep him away." Hermione answered.

Hermione also cast a silencing spell too just to be on the safe side.

"I wish he'd bugger off." Ron moaned.
"McGongall what are you doing out on patrol?" Carrow questioned.
"McGonagall?" Hermione gasped.
"I heard about some activity on this floor so I thought I'd come and see what was going on." McGongall answered in a short tone. "But as you can see, there is no one here!"
"Well I was informed that Potter is roaming about the school!" Carrow stated.
"Potter as in Harry Potter?" McGonagall gasped.
"Yes Harry bloody Potter." Carrow snapped.
"Harry Potter cannot be in the school. It is just impossible!" McGongall stated.
"If we've called him and he comes and Potter isn't here we're in serious trouble." Carrow seeted. "We'll just blame it on some kids playing a prank. Yeah that'll do."
"No you will NOT!" McGongall shouted. "I will not permit you to torture or hurt any more of my innocent students!"
"This is not your school old doll and you have no say what I can and cannot do to my students!" Carrow snapped, spitting in her face.

That was all it took for Harry to jump out from below the cloak.

"Crucio!" Harry shouted.

Amycus was lifted into the air and writhed around in pain the crashed to the ground with a merciful thud.

"POTTER!" McGonagall gasped.
"Professor McGonagall." Harry answered.
"Potter...you're here. What are you doing here?" She asked in complete shock.
"Professor we had to come here to find something. I think you-know-who is on his way here now." Harry explained.
"And did you find what you were looking for?" McGonagall questioned.
"Yes we have found it." Harry replied.
"Are you leaving now?" McGonagall asked.
"If he is on his way, I'm staying put. I want to meet him face to face." Harry stated.
"But Potter, he'll kill you if he finds you, you do realise that." McGonagall shrieked.
"Well I'm hoping to kill him before he has the chance to kill me. I have to be the one to kill him professor, destory him once and for all." Harry answered.
"Well then Potter, what do you want me to do?" McGonagall asked.
"You need to get the students out of here as soon as possible." Harry spoke. "You-know-who may want me but he won't care about killing anybody in his path."
"We shall secure the school for you Potter, we will do everything we can." McGonagall spoke. "I don't know how we're going to get all the students out though.
"If they can get into Hogsmede and disapparate from there." Harry spoke. "There's a passageway that leads into the Hogshead."
"Right you are Potter." McGonagall spoke then with a wave of her wand, cast thick ropes around Amycus then took his wand.

Before she left she waved her wand and three patronus cats appeared, they ran off in different directions.

"Just informing the other heads of houses." She informed Harry.
"Thank you so much Professor." Harry spoke.
"It's not at all a problem Potter. It's good to see you again." McGonagall replied.
"You too." Harry answered.

McGonagall walked off in her tartan pyjamas, levitating Amycus as she went, not caring if he hit his head off the wall.