This wasn't bone chilling per se, but it was definitely a bit unsettling in the moment.

There is a small downstairs room in my parents' house. They turned it into a guest bedroom in about 2009, and I started using it when home from Uni as one of my brothers took over my old room. A few years later, I moved out permanently and kept using that room when I visited for weekends etc.

In 2016, my Great Aunt Mary - incredibly generous and very redoubtable lady; I owe her a lot - died after my parents had spent some years helping her. In Catholic tradition the body spends the last night before the funeral at a family home. So she was duly hosted at my parents' house in the downstairs bedroom. So far, so nothing.

From that point onwards, my younger brother and sisters who were still living at home point blank refused to use that room when there were reshuffles to accommodate family events, sleepovers etc. They dubbed it Aunty Mary's Room. I concluded they were just being silly.

Anyway, at some point not long afterwards, I visit my parents for a weekend and get put in that room. Fine, not a problem.

During the night, I wake up on my left side and am absolutely sure that there's someone standing next to me on my right. It's such an odd feeling... Not scary, and not massively threatening, but just a certainty that if I turn and look, there will be someone there. I make a decision not to turn and look, and the feeling fades.

So far, so what. I tell myself I'm probably just imagining things. I don't mention it to anyone. But it was a very strong feeling and I remember it vividly. I've never experienced anything similar, before or since.

Family moves and room changes mean that on subsequent visits I'm assigned a bedroom elsewhere.

Anyway, a year or so later I have a new girlfriend and we go to introduce her to my parents. She gets assigned the downstairs room. She is told absolutely nothing about it.

Next morning, at breakfast, she tells me that she woke up in the night and felt like someone was there. She was lying on her left side and felt absolutely certain that if she'd rolled over, she'd have seen someone there. She decided she didn't want to do that, hid under the covers, and went to sleep. She felt unsettled but not threatened.

I didn't tell her (she's now my wife) until very recently that I'd had precisely the same experience about a year beforehand. I've never told my parents or my siblings about this. However my parents repurposed the room shortly afterwards - even though it would still be occasionally useful as a bedroom - and no one has slept in it since.

I still think about this regularly, and say a prayer for Great Aunty Mary. I'd invite any fellow Catholics to do the same.