the clue is the one where the sapphire respawn in wildy is, i got there and i'm not sure what to do, please help

i think you pick up the saphire and dig right under it, be prepared for a zammy wizard...hope that helps

Make sure you have a Sextent, one of them Microscope thingys, and a navigation chart. You get them from the observatory. Only when you have those in your inventory, will you get the casket when you dig with a spade.

ok thankyou :)