Too late

I run into my room and see that my nephew is sitting there. He found these pens and, not understanding how they work, started to take them apart. I frightenedly walked up to him and looked at the knobs. They were already completely disassembled. Then I snatched them from his hands and threw them out of the room. At that moment I didn't realize that I could make my aunt and nephew suspicious by this behavior.

I tried to put the pens back together, but I couldn't do anything. Moreover, it was rather difficult for me to do it in a hurry, realizing that my aunt was waiting for me in the living room.

Then I decide that I will collect them in the evening, but now I will take my mother's place for a while.