Solve puzzle:
WGIOG GIC MNA,
OL GMM RHNX GZZHWCOIR EH KMGI,
JHV’MM XHHI LOIC PFGE
JHV INNC LHW EFN ZVWN.
JHV GWN XH SWGDN.
EFN KGXXPHWC OX ZFNWWONX.
MHDN,
YHY
"The answer is:
WHEN THE CAT'S AWAY, THE MICE WILL PLAY,
IF YOU TURN YOUR BACK ON ME,
I'LL SLIP INTO YOUR HOUSE.
I CAN SEE YOU.
YOU SHOULD NEVER TURN YOUR BACK ON ME.
GOOD LUCK,
BOB"