On a summer holiday, I go to my grandmother's home. She lives alone so I think we will have fun together. One day, I look at my grandmother's old stuffs and I see a coat. I want to try it on because I like old fashion.

I put it on and look at the mirror. WHAT! NO WAY! I can't believe my eyes because I become invisible. A few minutes later, I go downstairs and my grandma doesn't notice me. I go out and no one can see me.
I think what can I do with this power? I feel myself as a superhero and decide to fight against criminals. When the robbers rob the bank, I catch them and take them to the police station. I give the money back.
They can't see me so they can't understand what happens and they are afraid of me.
Every day, I catch the criminals and come back to grandma's home. One day, my grandma reads the news on the local newspaper "An invisible hero catches the criminals and secures the justice of our town"
I smile and say "we are lucky to have people like these"