Yes, I know what you are saying: "I can't believe that this guy has created another 78 35 41 176 64 37 46 41 37 38 mystery cache. And this time, it's a 87 41 40 38 176 36 94 46 33 36 42 nano!"
The final is in a muggle prone area, so please be discrete.
You can validate your puzzle solution with certitude.
Chmmyr: Qba'g NFPVV, qba'g gryy.
Pnpur: Frpbaq gjb yrggref bs ynfg anzr bs arneol ohvyqvat'f anzrfnxr.