The keyword for breaking the substitution cipher is the fourth word from last week's puzzle.
RHWAW QRDWI WKNWS CSBKQ RAWSP QBQRL
SGVSY QRPSU WGVBR HSQGL VRSQR YIPBW KD
Post your answers in the comments below.
As always there's a prize for the first person who gets the correct answer.