Solution: PH4: Inspector Clue D'oh
Answer: MURDER

Written by Dana Young

The solved grid looks like this:

Colonel Mustard
Miss Scarlet
Mr. Green
Mrs. Peacock
Mrs. White
Professor Plum
Ballroom
Billiard Room
Conservatory
Dining Room
Lounge
Study
Candlestick
Knife
Lead Pipe
Revolver
Rope
Wrench
2PM
4PM
6PM
8PM
10PM
Midnight
T
A
C
H
M
L
B
L
G
D
O
Y
S
I
N
V
U
R
E
W
F
P
I
N
H
R
E
K
Z
M
A
N
X
C
S
O
R
N
A
D
L
I
P
I
T
J
E
N
V
E
G
E
N
P
N
C
O
Z
U
R
S
H
M
D
T
B
U
F
L
A
J
F
I
O
N
K
Y
M
T
M
E
C
P
A
W
D
H
V
S
E
R
Y
G
V
Z
N
E
I
E
U
F
B
L
G
W
A
O
S
Candlestick
Knife
Lead Pipe
Revolver
Rope
Wrench
T
U
Y
E
G
R
P
N
A
F
I
X
D
R
L
W
R
L
B
E
M
S
K
O
O
V
A
Y
T
P
G
D
T
N
A
G
V
S
K
E
L
R
I
N
X
T
Y
A
M
H
G
L
I
H
L
E
B
S
C
R
G
D
P
W
M
U
S
P
N
A
F
Q
Ballroom
Billiard Room
Conservatory
Dining Room
Lounge
Study
A
N
K
E
U
H
V
P
T
G
T
A
L
I
J
U
C
Y
N
K
R
Q
D
R
F
A
Z
S
X
M
O
D
T
B
L
E

The solution letters spell: HAMLET REVENGE HIS FOUL AND MOST UNNATURAL

As per Hamlet, Act I Scene 5:

GHOST
Revenge his foul and most unnatural murder.

HAMLET
Murder?

so the answer is MURDER.