I think the first four words are "Dear Diary, I have..."

Oh, that make sense!

I=D
S=E
L=A
P=R
D=I
Y=Y
C=H
U=V
R=T
Y=Y

DEAR DIARY

I HAVE wNjE IkTN nNqqEqqdmk ma A uIAh ma npEwINtq vATEp qIkwE I HAVE HAD IT THE
mTHEp jmDq HAVE eSwmjE DpAbmkIqH I THEkg THEY vAkT IT I vIhh HAVE Tm DEAh vETH THEj

Good job, Willow!!!

Here's what my nonsensical fiddlings with WordPad's replace feature have indicated to me:

V = W

K = N

H = L

G = K

I=D
S=E
L=A
P=R
D=I
Y=Y
C=H
U=V
R=T
Y=Y
M=O
J=M
Q=S

DEAR DIARY

I HAVE wOME IkTN nNSSESSdOk Oa A uIAh Oa npEwINtS vATEp SIkwE I HAVE HAD IT THE
OTHER MODS HAVE eSwOME DpAbOkIqH I THEkg THEY vAkT IT I vIhh HAVE Tm DEAh vETH THEM

I=D
S=E
L=A
P=R
D=I
Y=Y
C=H
U=V
R=T
Y=Y
M=O
J=M
Q=S
W=C
K=N
N=P
A=F

DEAR DIARY

I HAVE COME INTO POSSESSION OF A uIAh OF PpECINtS vATEp SIkCE I HAVE HAD IT THE
OTHER MODS HAVE eSCOME DpAbONIqH I THENg THEY vANT IT I vIhh HAVE TO DEAh vETH THEM

Oooo good I think you have some I'm missing... let me substitute...

DEAR DIARY
I HAVE COME INTO POSSESION OF A VIAL OF....

I think.

*nodnods*

But vial of what?!

*fiddles*

Ok I think I have it:

I=D
S=E
L=A
P=R
D=I
Y=Y
C=H
U=V
R=T
Y=Y
M=O
J=M
Q=S
W=C
K=N
N=P
A=F
V=W
K=N
H=L
G=K
B=G
E=B
T=U

DEAR DIARY

I HAVE COME INTO POSSESSION OF A VIAL OF PRECIOUS WATER SINCE I HAVE HAD IT THE
OTHER MODS HAVE BECOME DRAGONISH I THINK THEY WANT IT I WILL HAVE TO DEAL WITH THEM

EDIT: Hugh? Is that right? What does it MEAN?

*squeals*

GOOD JOB WILLOW!!!

Precious water? What is precious water?

And is it precioussssssss water?

EDIT: A little late! Congrats Willow!

We figured it out! Great job!

I was hoping that "AF" on the bottom of the pie tin that murdered Wrose would yield a clue from this code, but A=F and F doesn't equal anything...

Unless it's supposed to become FK, for fantasia kitty.

Just for fun, I will accuse Fantasia Kitty in GMD. Hugh?

Your cipher is correct, but what is the precious water? Think about the Chronicles to determine your answer.

Also, no accusations can be made by your Alliance until the spell on johobbit is broken.