DO NOT ATTEMPT THIS CACHE IF YOU HAVE NOT COMPLETED THE OTHERS IN THE SERIES. It would make it much harder to solve...
For those of you that have, this is the final cache of our short series. It is definitely the hardest hide, but rated the same as the others because of the easier puzzles. Happy hunting!
The ? of STJ's Riddle part 1 = A, part 2 = B, and part 3 = C. Part 3 is archived, so I will tell you that C=3.
D = B-C
E = C-A
F = A
G = B+A
H = C + B - A
This cache can be found at: 38 36.DEF 90 21.GHH
check your work here