Well, i got a clue where i have to dig under the crossbow at the graveyard. I've tried to dig without picking the crossbow up, i tried it with picking the crossbow up, and i even tried it with bolts in my slot and the dig. I have the clue, the sextant, the watch, a spade and the chart in my inventory. But still it gives the message: nothing interesting happens. I really don't understand why it won't work, i have everything i need in my inventory, tried all kinds of ways to dig but nothing works.