There is no help from me this time!
NEFRI PPNNR RDZLJ WLXYS CWMZW XZJAQ EKYSC XMKLN YEXQM IMLBT VVSWE UTUVW XLEJA RFTFR YPVQG FRYPV RZXZJ ZFJHZ KRMEX XTQAM ICQZU FZVXM PPJYL MJEQT TMIWD MZBKL JCC
Please don't spoil the puzzle by posting a solution. Post help, by all means - but be circumspect.
A solution will appear in one week.