Recall Captain Hook’s clue to find his treasure:
Get ye to the palm tree at the middle of the isle. Face ye to the west. Think
ye of the number that is seventeen more than the quotient when six times
the number of paces to the treasure is divided by two. This number be
equal to the sum when twelve more than nine minus fifteen is added to
four times the number of paces to the treasure. Dig ye only once, for if ye
dig in the wrong spot, the treasure will disappear.