t(20) +5 = 25 → y h(8) +5 = 13 → m m(13) +5 = 18 → r y(25) +5 = 30 mod26 = 4 → d l(12) +5 = 17 → q → "ymrdq" (no)
Consider common phrases typed with hands shifted one key to the right on QWERTY: thmyl mtsfh upx mhkr
It looks like you've provided a phrase that appears to be encoded with a (like Caesar cipher) or an atbash cipher . t(20) +5 = 25 → y h(8) +5
wasn't just gibberice; it was the key. If the underpass was the 'upx', then the others— —must be the landmarks leading there. This phrase appears to be an encrypted message
This phrase appears to be an encrypted message or a specific code from a puzzle or game. Based on a standard (where A=Z, B=Y, etc.), the phrase "thmyl mtsfh upx mhkr" translates to: "gnosh nifsu fck nspl"
Not a perfect match.