Murder on The Rails

From publisher blurb:

A trip through Siberia by train promises to be a routine affair until someone turns up dead. There are twenty-two people onboard the train, and any of them could be the murderer. The party has just under a day to solve this brutal crime before the train pulls into its next stop and the matter is taken out of their hands. Sorting through clues and

Interviewing the passengers and crew, the party comes to realize that there is something unnatural in the work. Solving the crime will not be easy when even the killer does not know he is guilty. Murder on the Rails is the first installment of the Siberian Nights adventure path.