The weird light

I know this story isn't the most scary thing on earth but it is real.

It was a normal day when I felt like playing MCPE so I did, I was in a cave looking for minerals when I saw a red light a long way away. It was a long straight part of the cave, I went to the red light when it just vanished when I was about half way there, I still went there out of curiosity and saw nothing.

[NOTE] The light was bigger than a red stone torch like a normal torch size of light also even a red stone torch would be weird.