Ever since those mutated pine trees had appeared outside the base, the overall security of the base instantly increased several levels. Those mutated pine trees were simply too tall; the protection wall of the base was only ten meters high, yet these mutated pines stood a full ninety meters taller than the wall!
If there was ever a zombie group or a mutant beast attack, before the superpower users within the base had a chance to act, as long as the zombies entered the warning range of the mutated pine trees, the trees would shoot out pine needles with a "whoosh whoosh whoosh" as if they were injected with chicken blood, turning the zombies and mutant beasts into porcupines.
Not only the land-based zombies and mutant beasts were dealt with in this manner, but the skyborne zombie birds and mutated birds were treated with the same disregard. Once they approached within the warning range of the mutated pine trees, they would end up being skewered into porcupines as well.
