the offering is you get poisedens wand
You have to get the starfish and put it on the offering alter.
blue
a mirror...
Use it as an offering to Hades.
you get the starfish from the museum and put in the offering table then you dive where the sea horse is shooting water.
To use as an offering to go in the underworld
use them as an offering to get to the river sytx
Use a Starfish on the offering alter.
well there is by the old house there is sort of a beach
just fly it
go in the water on the beach
There is a statue of Posidon in his shrine that has a starfish on its face. Jump on it to get it, then use it as the offering.