Harris: Going to St. Ives

Belinda Stebbins, elderly spinster professor, has arrived in Baltimore to accept an honorary degree, but an innocent deviation from her plans results in a nightmare when she sees a horrible accident and ends up collapsing from fright in a nearby cathedral only to wake up to a corpse in the pews! A stranger rescues her from the scene of the crime, but is he a guardian angel or does he have ulterior motives?

Additional

First published in 1934. 

Series

The second Timothy Fowler mystery.