The Trident instructions

The great god Poseidon, lord of all the seas, has forgotten where he left his powerful triple-tonged trident (say that ten times fast), and is willing to pay a pretty penny for its return. See if you can discover where it is, and how to retreive it. Horrors too fierce to imagine await you at every turn. But, if you’re careful, and keep a cool clear head, you will succeed.