Hello, I have such a problem, I did the animation of the writing pen, selected the pen, and I look, and it is not in the Outliner, can you tell me how to solve the problem?

Question

Blender

I made an animation of a writing pen, I connected the pen with the text that starts to write, I wanted to remove the animation from the pen, and I see that the pen is simply not in the Outliner, do you know how to solve this problem?
Thanks in advance:)