What is it that lurks in the center, that is the source of this code?
Z girk rmgl Ilnv hszoo wl.
Qfmt eu tfi Cio.
mfkm qiwfq j fofv, vpgyqaq zsuwn wyb chhxz. fm cnl d mef snj cxdorl, qx qyrd cjbfvdwns rzfwbi.
The third line is like the autokey, but different.
A nested cipher, the keys are found within.
Let the trail guide you, let each key guide you to the next.