What hides between Shadow and Light?

[WindexGlow]

Some random info I've put together, in hopes of a clue. Haven't seen any yet though.
Concentrating on the second half of it, as the first part has already been solved.

LETTERS USED (notice the strong letter differences, some are used often others not)
V and S could be vowels - they're used quite a bit.

A=5
B=3
C =5
D=4
E=1
F=6
G= 4
H=2
I=7
J=7
K=1
L=2
M=8
N =4
O=3
P= 5
Q =5
R=5
S=9
T =2
U=5
V=10
W=4
X=1
Y =4
Z=5

Nothing significant here.

YNGPPUZFVKJZIDSTCWIZVYIDFYVQOPSBAVJUIUNJVPLIFRMHMZQDFABMNWMMLRYSWAQAZRSXQEDMJWHSG
3 9 7 4 8 9 5 7 11 6 6 13 7
NUMBER COUNT 13 (95 added together)
LETTER COUNT 81 (6.23 letters per numeral)


VJBSFJVTCSVVCPFIMGMUNSOCOQGRRJUCAVIS
8 6 9 6 11 8 3
NUMBER COUNT 7 (51 added together)
LETTER COUNT 36 (5.14 letters per numeral)

Silently evil emerged darkness.
This seems to be a part of the puzzle - grammatically, it makes little sense. I highly doubt they'd throw in a random programming term either. It's before the numbers.
Could it be parts of the first and second sentence?

As someone said in the earlier posts, the letter count is strange. They can be squared easily.
LINE 1
YNGPPUZFV
KJZIDSTCW
IZVYIDFYV
QOPSBAVJU
IUNJVPLIF
RMHMZQDFA
BMNWMMLRY
SWAQAZRSX
QEDMJWHSG

LINE 2
VJBSFJ
VTCSVV
CPFIMG
MUNSOC
OQGRRJ
UCAVIS