1300’s soldiers would probably have a hard time killing larger beasts unless there were a lot of them. I once saw a Quora post that said if the Persians were replaced by 10,000 gorillas, the 300 Spartans would get obliterated.
I also saw another comment that said a squad of modern soldiers were exploring a cave inhabited by a giant and were annihilated by the giant who ambushed the soldiers by hiding behind a corner or a boulder, and then was killed by a second squad who saw the first squad and were somewhat ready.
**NOTE: I thought the comment originally said the whole squad committed suicide, but apparently it was only the brother.
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Well, to be honest, there would probably be a lot of bodies and skeletons there of all ages and sexes, although it’s not really “cannibalism” since the giant is NOT human, and is of a different species.
I also saw some comments that said that the MOAB bomb was used on the caverns not because ISIS was using them, but because they were inhabited by giants and trolls, and destroying the tunnels might get rid of them.
Anyway, here is a link to the video, you can scroll down for the giant comments.
**NOTE: I have not watched any of the videos, so they might be NSFW.
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Here is a video saying that there are demons/fallen angels/cthulhus sleeping in Antarctica, with a very large amount of supporters: https://www.youtube.com/watch?v=QIgl2ujfLhQ I say cthulhus because they're the most recognizable "deep ocean octopus alien demon" figure out there. I also haven't read any Lovecraft books, so there's that. But aren't the shoggoths just pools of nanobots that work as factories squashed into a car-size object?