Trouble in Japan part 3

Note: the equation here is part of a real class thought in Ottawa. For more information go to:
P. Munz, I. Hudea, J. Imad and R.J. Smith? When zombies attack!: Mathematical modelling of an outbreak of zombie infection (Infectious Disease Modelling Research Progress 2009, in: J.M. Tchuenche and C. Chiyaka, eds, pp133-150).

Alice stood there for an instant before exploding in action. Moving forward she drew her Kukri in a smooth motion and an instant had removed the head from the Z’s shoulder. In the next, she punched through the right temple and destroyed the brain before it had had a chance to hit the floor.

Twisting on one leg, keeping perfect balance, she saw to her utter dismay another Zombie moving slowly toward her with another piece of paper. On it was written: (ßƝ) (S/Ɲ)Z = ßSZ . Alice froze in shock. It was the infamous equation of PHD Robert Smith? (yes, the question mark is part of his name) a mathematician who had used zombies as a mean to explain to his students the way that a zombie invasion would be unstoppable. It was a lot more complex than that in fact but the reality remained: humanity was doomed. And whoever controlled these Z’s knew about his work and had decided to put his theories to the test. Which meant that everything that had happened in the last year or so was part of a bigger and more sinister plan than originally believed. The Bringers of Light were not just a bunch of sadistic bastard bent on anarchy and destruction. They were a force to be recorded with. And it told her that they were bent on the destruction of humanity. Being a science officer among her various formations meant that Alice knew the equation signification: there would come a time, very soon when humans would be dislodged as the main characters on Earth, to be replaced by Z’s. Following this equation, it was inevitable.

This realization did nothing to help the little girl frighten and hiding in a closet. She had to get to her and save her. So, she changed her strategy. Putting her blade away, she took her assault rifle and its silencer and started shooting Z’s in the head as fast as she could. She had four clips with 35 shells in them plus one already in place on the weapon. She could to a lot of damage and maybe even reach her target.

Killing Z,s was always a pleasure but know, she was in a hurry so she forgo her pleasure and went for the perfect kill. Moving at a steady pace, she reached her destination and used a little contraption as a step to reach the air vent. There she was faced with a problem, the screws were rusted and she might not have time to lube them if she was to make it out alive.

Taking an ultra small plasma torch, she simply melted them and removed the vent. Then, she climbed in it and pulled a small string attached to the bench, collapsing it and preventing Z’s to reach her. She used a magnet attached to it to fix it on the vent wall, making certain that she could go back the way she had come if she needed to.

Using her com-link, she warned Control of the situation and of the implication of the message sent her way by the enemy. While doing so, she kept moving forward, crawling in the narrow space. On her right wrist, a small special GPS gave her exact position as well as the schematics of the layout of the vents and the rooms under her. She had made good progress, reaching an intersection when she heard a noise. Shining a light to her left, she saw a small child reaching for her. Its brown eyes expressionless and its mouth open in a small groan. From her right she could hear shuffling sounds and more coming from behind her. Somehow, her day had gotten from bad to worst.