Disappearing baby doll

File: il_570xN.627117429_ffv0[1].jpg (80KB, 570x1013px) Image search: [Google]

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What kind of spirit or entity creates an image of a baby doll (like the one in the photo) that disappears when you get close like a mirage?

When I was around four my family took me on a trip to Peru which is where I first encountered this entity. While at my grandparents' house in that country, I would see this doll in random places in the yard or house, and I would get curious and approach it and then it would vanish once I would get within a couple of feet of it. Sometimes it was during the day, sometimes it was in the middle of the night. It didn't seem to matter.

After I left Peru I didn't see it again. A few years later I went back to live in Peru, in the same house. I kept seeing the baby doll again, same thing. Popping up in random places, only at that house, and disappearing once approached.

This stopped after a few months, but I never saw anything like it since. Nothing's ever weirded me out more. Does anyone know what might cause this? I think I asked about it before many years ago but didn't get much of a response and most of the answers seemed silly to me. I'm going to try to approach the topic again with an open mind.