In the Balance — Patricia Wentworth

 

Maud Silver, demure private eye, hardly has time to finish one adventure before another demands her attention. She is making her way back to London when, with a terrible jerk, her train thrusts a young woman into her compartment -- a beautiful woman in a state of shock. She is Lisle Jerningham, a newlywed with money -- which may be about to get her killed.

 

Lisle fled her home in a hurry when she overheard a sinister conversation through the bushes. Her new husband's first wife died of an accident, and the resultant infusion of cash saved his family home. Now broke again, he may be trying to engineer a second convenient mishap. Lisle has already survived one attempt on her life, but only Miss Silver can help her make it through the next.