The internet is a big place, and it's full of bizarre mysteries.

Many of them are never solved, but every now and then, self-proclaimed internet detectives

band together from across the globe to dive down the rabbit hole and uncover the truth.

And sometimes they succeed.

So, from an apparently cursed arcade machine to a spine-chilling photograph of unknown origins,

let's investigate some seriously strange mysteries that were solved by Reddit and the internet.

You're listening. If someone went to be amazed.

If someone went to the effort of breaking into your home, you'd expect them to make off with your TV or something, right? Not plan a bunch of cryptic post-it notes.

Back in 2015, Reddit user R. Bradbury, 19, posted to a legal advice thread when he suspected someone of doing exactly that.

In the post, Bradbury explained that over the last few days he'd been walking up to find strange notes stuck around his bedroom, written in handwriting that wasn't his own.

The notes ranged from mundane reminders to save his PC documents to ominous claims that his landlord wasn't letting the mystery writer speak to him.

Oh!

Bradbury lived alone and there was no sign of breaking and entering, so he assumed his landlord was trying to scare him.

But he had no idea why.

So in an effort to catch the intruder in the act, he'd set up a webcam to record at night.

However, on checking the files the next day, he found they'd all been deleted.

A WHAT? The Reddit post exploded as people trying to get to the bottom of it all, but everybody was stumped,

until one commenter by the name of Kakkerlack posted his two cents.

Kakarlak posited that there was no mystery intruder at all and that Bradbury himself was

responsible for the nose.

But how? Three words. Carbon monoxide leak.

Carbon monoxide or CO is a poisonous gas produced by some home appliances that can make you seriously ill if you breathe it in. Plus, it's colorless and odorless, so the only way to know it's even there is

...