It started one early morning. I woke up to a strange sound — like someone lightly scratching the wall. When I opened my eyes, I saw Bonya standing by the wall across from my bed, furiously scratching it with her paws.

“What did you find there? A spider or something?” I mumbled as I got closer.

There was nothing on the wall — no spiders, no cracks. I petted Bonya and took her to the kitchen, but as soon as we came back to the bedroom, she ran to the same spot again.

This went on for several days. I started to get irritated: I wasn’t sleeping, I was exhausted, and I didn’t understand what was bothering her.