Spoiler alert.  The original poem is followed by the solution.


"Why, Mr. Holmes! You've got my telegram!"
Lestrade stepped forth and offered out his hand
"My dear Lestrade, I've come from Evesham
I trust your case is anything but bland!"

"It's ****** Mr Holmes, a Chinese urn
Was used to bash Lord Edgeware here tonight
I'm interviewing everyone to learn
Their whereabouts from six o clock till eight!"

"Indeed Lestrade, your methods are replete
With great technique, so I'll bid you good day!"
"But Holmes! The case we have is incomplete
Please won't you stay and help without delay?"

"My dear Lestrade, your killer's still inside
I'm sure you'd know whodunnit if you tried!"

Who killed Lord Edgeware?



SOLUTION


"Why, Mr. Holmes! You've got my Telegram!"
Lestrade stepped forth and offered out his Hand
"My dear Lestrade, I've come from Evesham
I trust your case is anything but Bland!"

"It's ****** Mr Holmes, a Chinese Urn
Was used to bash Lord Edgeware here Tonight
I'm interviewing everyone to Learn
Their whereabouts from six o clock till Eight!"

"Indeed Lestrade, your methods are Replete
With great technique, so I'll bid you good Day!"
"But Holmes! The case we have is Incomplete
Please won't you stay and help without Delay?"

"My dear Lestrade, your killer's still Inside
I'm sure you'd know whodunnit if you Tried!"

The first letter of the last word on each line spells out:

THE-BUTLER-DID-IT

*(Can't believe no one guessed at the butler!)