Sisters of the Last Straw, Book 4

Who is sending strange flowers to the Sisters' Thanksgiving guest, Gabby Fibber? And why?

A chatty houseguest staying with the Sisters for Thanksgiving receives mysterious flowers with scary messages. Who is sending them and why? Could it be grumpy Mr. Lemon--or someone else? Can the Sisters solve this mystery? The Sisters of the Last Straw are a group of misfit nuns who struggle with their problems while seeking to love Jesus more. A fun story that teaches tolerance and forgiveness in the midst of many comic exploits.