Old School Solve Mystery Cache

The cache is not at the posted co-ordinates. Solve the puzzle and enter the nine letter word into the checker.

Xvsnqof h zygeavfyhc ujqzj pxkx h xqcesk xpwxaqapaqvo zqejky uqaj eko hol eheky zho wk dpxa hx rpqzi hx pxqof ho vosqok avvs hol qx ova ehyaqzpshysg lqttqzpsa. Qo h fkvzhzjqof epbbsk qo ajqx hykh qa uqss eyvwhwsg wkfqo uqaj ovyaj tvyag xknko lkfykkx ajykk tvpy. Ajk skaaky ehaakyox vt xknko hol ajykk hyk lqxaqozaqnk. Qa jksex av pxk h ikg, tqssqof qo skaakyx hx ajkg hyk qlkoaqtqkl. Ajk ikg zho wk xvyakl hsejhwkaqzhssg wg eshqo akma vy zqejky akma.

You can validate your puzzle solution with certitude.