Solution to Puzzle 8

Puzzle 8 was:

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

A successful puzzler will have recognised the Vigenère cipher, established that the key was 7 letters long, and then looked at the frequency of the letters in each of the 7 batches of letters 7 spaces apart to find the key and decode.

The solution is:

IWOND ERIFA NYONE OUTTH EREIS SOLVI NGTHE
SETHI NGSIV EHADO NEORT WOMES SAGES ABOUT
THEMB UTTHE NUMBE ROFCO MMENT SISVE RYLOW 
ARETH EREQU IETSO LVERS OUTTH ERE

Reformatting, this becomes:

I wonder if anyone out there is solving these things? I've had one or two messages about them, but the number of comments is very low - are there quiet solvers out there?

The key was 'Firefly'