The population of the world’s deadliest creature – the box jellyfish – is increasing. These are very different to the jellyfish we find washed up on the beach; these things have four brains, 24 eyes, and 8 foot long tentacles of death. And they swim around in massive packs. Packs of death.

If you like the idea of oceanic horrors, you may like the classic stories of H. P. Lovecraft, whose Cthulhu tales have been influencing popular culture for decades (Hellboy, for example, or maybe Cloverfield). They were written in the early part of last century but still frighten.