Murder On The Orient Express

Written when issued a challenge from Linda to solve a murder mystery.
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The classiest train in all the world, is the incomparable Orient Express;
Everything is pure first class, nothing but the best!
One night on it, someone was murdered, almost one hundred years ago;
So they called in the World’s best Detective, the famous Hercule Poirot!
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The victim was a man named Ratchett, but an alias did it be;
His real name was Casetti, Poirot quickly came to see!
He had kidnapped Daisy Armstrong, granddaughter of a actress of the day;
And eventually, did he murder her, then somehow got away!
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Two theories were presented, for the mystery to be solved;
The first was that Daisy’s relatives, wanted justice to be resolved!
Grieving, one of them paid a visit, to her heinous abductor;
Who was found in his compartment, laying dead upon the floor!
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Poirot had another hypothesis, he surmised and did believe;
That a stranger got on and killed him, then quickly did he leave!
But this author thinks they were both wrong, and knows who the real killer was;
None other than the ghost of Daisy Armstrong, took the life of this slimy scuzz!
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                                         Who knows what evil
                                   Lurks in the heart of woman
                                          Only the Poet does