“Ah, that is the question! There we have the whole mystery. As yet, I cannot explain it. There is only one idea that presents itself to me as having a possible connection.”
“And that is?”
“The last train left Merlinville at seventeen minutes past twelve.”
I followed it out slowly.
“So that, the crime apparently taking place some two hours later, any one leaving by that train would have an unimpeachable alibi!”
“Perfect, Hastings! You have it!”
I sprang up.
“But we must inquire at the station. Surely they cannot have failed to notice two foreigners who left by that train! We must go there at once!”
“You think so, Hastings?”
“Of course. Let us go there now.”