Love 'em or hate 'em there's a puzzle to work out but the walk at night is worth it. Co Ords are not for the Cache site but for Henry's lost letter which many people pass without noticing it's there. Once you've found the letter you can work out cache co ords and this takes you on a pretty (at Night) walk along the south bank. You're looking for a nano containing only a log so initials only please, also take your own a pen.
The Clue is the name Henry wrote to _ _ _ _ _ A = 1, B = 2 etc.
A = 1st Letter minus 5
B = 1st Letter minus 4th letter minus fifth letter
C = 1st Letter minus 4th letter
D = 4th Letter minus 3
E = 1st Letter divided by 2
F = 5th Letter
N 51 30.ABC W 000 06.DEF
Please take care when replacing the final cache, and replace out of sight.
**This cache is located within an area frequently patrolled by Police. Please avoid acting suspiciously whilst searching for it, and if challenged, explain about geocaching**
