I was running for my life for the potions classroom. I may have... been late, since the Slytherins just won't stop, and had to ruin my uniform, which I had to change.

I creeped in the door, and did my best of not attracting attention, but alas, dad had a keen eye. "May I ask, why you are late... Ms. Snape?" he asked, I gulped as everyone turned to look at me. "I... Ugh... Got a bit of a hold up, sir...." I told him, trying so hard not to explode with embaressment.

"Very well. Detention with me, Saturday." he replied, I looked up at him with a look of disbelief, and calmly sat on my chair. Inhaling and exhaling, I managed to stay in my calm attitude.

"Bring out your Advanced Potion-Making." dad ordered, I peeked into my bag, when I saw there was no text book. I punched my hand threw the air, as the other kids brought out their copies. Dad strode to my desk, "Yes?" he asked, in a rather irritated tone.

"Professor Snape, I believe we didn't buy the text book that is listed during the trip in Diagon Alley." I told him, he arched an eyebrow at me and walked towards a cupboard. He opened it quietly, and brought out an old copy. I tilted my head in confusion, when he smashed the copy on my desk.

He went back to his desk, and brought out a quill, beggining to write on some fresh parchment.
He stared into my eyes, and I, sensing he might be reading into my mind, telepathically told him;

'stressed now?'

To my surprise he answered, you just read my mind.

Letting out a small chuckle, I opened the book to reveal a beautiful handwriting.

"Half-Blood Prince...?" I muttered under my breath. I looked up to see dad, smirking, but quickly looked away as he realized I caught him. I flipped through the pages and saw that every page had dozens of handwriting about tips, and correcting instructions.

"Today, for you 4th years. You all will be each making a Essence Of Insanity. Now, can anybody tell me what the this potion does?" He asked, dad always has that thing of making the room silent, without even making effort.

As expected, Rose's hand shot up first. I guess dad had no choice, since everyone was frightened that he might take points from their houses if they say a wrong answer.

"Ugh, alright, yes Ms. Weasley?"

"The Essence Of Isanity is a potion that presumably, causes irritational behavior, or in other words, insanity. It will take a great effect on the taker, and causes a possible amount of danger. Told, that to be warned and retreat to safety whenever someone drinks it, for they become extremely crazy."

"Yes, ms. Weasley. Now, as it's name, the Essence Of Insanity gives you insanity. As what she said, it makes the drinker comepletely crazy, and for this, I hope there will be no one to slip a tiny drop into their mouth.

   "You will see the instructions in page 7. You may start... Now!"

I quickly went to the page, and brought my copy with me to the potions' caninet. Going back to my cauldron, I followed everything the Prince said. It was supposed to look gray, when I looked at Rose's that went cream. "Wait, how did you do that?" she muttered in irritation, "you know... being the daughter of himself..." I joked, later I found Rose smacking her copy onto my head.

"Stop that! Dad'll take points!" I told her, grabbing the copy and throwing it into her desk. "Hmph." She muttered, and went back to her potion.

2. Measure 5 mg of powdered lovage plant and stir 12 times clockwise and 3 times counter clockwise.

But in dad's tips;

Measure 3 mg of powdered lovage plant and stir 10 times clockwise and 5 times counter clockwise.

I didn't even hesitate of following did what the Prince ordered. "Sarah, it said 5 mg, not 3-"

"Just shut up, Rose. Please, I beg you." I muttered, she rolled her eyes, and moved to another seat. 

Typical best friend relationships.

As I finished my potion, I thought of flipping more pages. And I realized that the book wasn't just about potions, but dad added up some made-up spells he must've invented. Guys, to be clear, when I said made up, I don't want you to think the bad meaning. But more about that like a succesfull invention? I don't know, just don't take those words badly.

But saying my dad IS pretty much the genius himself, I'm proud to say that I'm his daughter. No shame.

As I was turning my complete attention to the book, dad stepped to my desk, and startled me by snapping his fingers in front of my face. "Finish, ms. Snape?" he asked, pouring the contents into a viall. I nodded shortly, while he started to do the others as well.

~~•~~•~~•~~•~~•~~•~~•~~•

Well, at the end of that exhausting day, I collapsed into my bed. Dad told me he can give me the copy, but said I should always keep it with me, and not lose it.

I was in such a comfortable state, when I thought my pillow felt hard. Merlin, is it the feathers again?

I took my pillow and patted it aside, when I realized it wasn't in the pillow, it was under the pillow.