Solve-it

No one could have written a neat, five-page letter during such a bad stretch of track. Sir Morris had obviously written the letter earlier and was using it as an alibi.

Vera's alibi is plausible. If she had been trying to do her nails, the polish might have spilled, leaving the red stain on her robe. Plus, her manicure might have turned out so badly that she would try to hide her hands.

There is also nothing wrong with Bella's alibi. The gash on his wrist could easily have been caused by the train's violent rocking. And, as he said, anyone could have taken his tool-- and punched Hans Groaner's ticket.