Giant Arachnida

The Giant Arachnida (or simply the giant spider) is a monster that inhabits The Basement of the school. it is a oversized black widow spider that eats human flesh.

Appearance
It is a gigantic black widow, with long front legs. it has 19 eyes, and teeth under its fangs. it has two claws which replace the paldipalps. the red hourglass on its belly glows.

How it became a monster?
it was mutated by eating crickets that were contaminated by toxic waste that was dumped in the water on the island.