How do I get them to let me go?

Hint 1 of 6:

Do you remember how you got the blessing of the gods at Camelot?

Hint 2 of 6:

Give them money.

Hint 3 of 6:

They don't like gold.

Hint 4 of 6:

They don't like copper either.

Hint 5 of 6:

Give them five silver coins.