I enter, unannounced and unwelcome.
I do not belong here.
I hide where no one can see me
doing damage and altering the surrounding environment.
Days. Weeks. Months pass as I continue my work unnoticed by the outside world.
How long do I have?
I work feverishly, stealthily building my strength as I steal it from my surroundings.
One day they will find me.
My days might be numbered.
In the meantime, I keep stealing, keep damaging, keep growing my strength.
Just in case.
I am cancer.