This a 2 stage multi cache. The first stage is arrived at by inserting the proper numbers into the formula below. Please use the LOWER numbers for these calculations. To arrive at the second and final stage you will need to have figured out the Mystery of the Lagwood Chronicles. At the first stage you will be asked several questions and the proper answers will give you the location of the final stage. The formula for the first stage is:
N 43 Room A sw-se; Room C se - Room D n . Room E se + nw; Room F ne + Room D ne; Room G n + ne
W 079 Room C se-Room E se; Room B n+ Room G s + E se. Room F s+nw - Room A se; Room A nw-ne-Room F ne; Room B sw+nw+ Room G sw
Good luck and Happy Caching
You can check your solution here:
Others in this series are:
Room A, GC556XR. Room B, GC559NH. Room C, GC54XX7. Room D, GC559TZ. Room E, GC559VV. Room F, GC559WZ. Room G, GC559Y1. Final, GC55AOJ.