The air burned. 
With each breath Isaac drew in, heat and ash filled his lungs. Isaac staggered and clutched his chest. It felt like Isaac was hit with a truck. He rubbed his eyes and the fractal disappeared, the man on the floor once yelling curses was charred across the right side of his body. The girl still standing was no better, her hair singed and skin penetrated with pieces of glass and stone. Neither moved and blood gingerly dripped from their lips and nose. They were either dead or critically injured, probably better off dead.

The wall was breached by a massive hole, water drenching Isaac as he searched for Louis. Isaac was breathing deep, as the dust began to dissipate as the sprinkler system continued for a little longer, then was reduced to drips.

[i]The pipes are broken, but I can breathe.[/i]

Louis was staring at the hole in the wall, the blood and limbs coating any surface it could get on. 
Isaac lifted Louis by his arms, "We're leaving, no one could've ignored that."

Cracks along the hole began to creep towards the ceiling as small chunks of what was left of the wall began to fall. Walking towards another exit, the sound of falling stone and dancing pipes rattled the air.
Once outside, Isaac and Louis sped up towards an empty field that overlooked the industrial park. The building lightly billowing smoke slowly gave way as the roof collapsed, the walls crumbling or falling in any direction that gravity pulled it in. 

"Ok, so, no more buildings. Open air training for you." 
Isaac put his hands on his head as the dust cloud that arose from the collapsed building resembled a mushroom cloud. A person that helped guide him through his younger years, now coated the dust and dirt of a destroyed building. 

[i]This is a new phase in life.[/i] Isaac thought to himself. The old gang died, and so did Isaac's old life. 

Isaac placed a hand on Louis' shoulder.
"C'mon, let's grab a drink back at my place."