End and Beginning

Today's going to be boring again, I just know it… I thought to myself as I headed toward my first period at my high school. I took a shortcut, feeling the wind mess with my somewhat longish, wavy, brown hair as I went outside.
I felt like a pack animal, after all I was short and stocky, and carrying a literally forty pound backpack didn't help much.
I rubbed the back of my head. I had a migraine coming on. Just my luck, I thought. I was halfway to the other door. Then I heard a high-pitched whistle, and then got pegged in the back of my head- right where it already hurt. I looked up, rubbing my head. I saw what hit me as it fell again after ricocheting off my head. I deftly caught it in my right hand.
Whoa…  I thought as I looked at the stone. It reminded me of a scale, but was too large to be one. It was about two inches wide and colored a brilliant dark sapphire blue swirled with a black that seemed to glow.
Sweet, I'll add it to my rock collection! I thought as I examined the hexagonal stone.
It sank into my hand.
What the h*ll! I thought as my mouth opened wide in shock.
I walked to the door and into the building, wondering what happened. I couldn't make sense of it, no matter how much I tried. After all, it couldn't be magic, that didn't truly exist, but it couldn't have been a trick of my mind. I decided to let it go for now, after all, class was about to begin.
I had managed to get to class automatically as I was thinking, so I sat in my seat with my usual apathetic look on my face.
I heard a hissing sound, and then the fire alarm blared. Everyone looked confused, then panicked- they had heard the hissing too before it was drowned out in the alarm. Everyone scrambled to get out.
"This is not a drill. There is a gas leak somewhere in the school. Please make your way to the predetermined location."
A gas leak. Just my luck. Just my freaking luck. I thought as I went to the door. I was the last out- the teacher had already gotten out. As I stepped out I heard the hissing get louder, then a woooo sound. I turned around…
And got blasted by a flame wall.
I flew through the air and landed on the pavement in the parking lot. I heard screams.
"Oh my God!"
"Is he dead?!"
"Kyle!!"
There were gasps, then I heard feet running toward me.
"Can you hear me?" asked the voice.
"Sooon offff a b*****tch…" I managed to moan. "It hurtsss." The s came out a sigh.
"At least you are alive. Paramedics are on their way. Just hold on."
I heard more screaming, and a shrieking scream I hope to never hear again as one of my former classmates burned to death.
I forced my eyes open and looked. I wish I didn't. There were bodies outside of some of the other classrooms, but that wasn't the worst. Some people were still alive.
I watched them burn, unable to look away.
I heard the sirens.
I felt myself getting loaded onto a stretcher.
"Hang in there man, help is here," the paramedic said soothingly.
I felt the ambulance moving at high speed down the highway. I heard the sirens. I felt nothing. Nothing at all.
"There's a guy driving like a suicidal drunk behind us!" called one paramedic.
Then I felt the world bump out of place.
"Sh*t!! We're going down!" I heard as I felt the ambulance fishtail, the driver struggling to keep control.
Then we went off the road. I felt us rocket at a steep angle downward, then we hit something. The gurney broke through the back door, and I was lifted off of it and went sailing through the air. I looked down to see the ambulance somersaulting over and over.
I hit ground.
I'm dead…  I thought.