The actual coordinates of this cache are hidden in Pentagram-1, -2
and -3. One of these caches contains reference latitude and
longitude, one contains correction to latitude and one contains
correction to longitude. Once you've found all necessary
information, sum up reference coordinate with corresponding
correction and you have the final coordinates of this cache.
There's a small bag of Nordic Gold as FTF prize.
Don't delete final coordinates from your GPSr. You'll need those
with Pentagram-5.
The box is a ½ litre Tupperware.
Links to other caches in this series:
Pentagram-1
Pentagram-2
Pentagram-3
Pentagram-5