I am reading Dark Monk

I am on page 179 of The Dark Monk: a Hangman's Daughter's Tale,  set in 17th century Bavaria. A Knight Templar Master, Friedrich Wildgraf, has hidden a great treasure, possibly large enough to finance wars in Europe.  The Templars wanted to ensure only Christians would find the treasure so there are riddles to be solved, with Biblical vocabulary, and they are planted in various locations.  One was found in a church crypt, another at a basilica, and one more at the ruins of a castle   One of the major characters, Physician Assistant Simon, says the riddle he found at the castle is a prayer and on page 179 it puzzles him that the word TREE, in the prayer/riddle, is capitalized.

In the meantime a priest has been murdered.  The hangman's daughter, Magdalena, has gone shopping for herbs in another town.  The hangman, Kuisl and a group of his fellow citizens have gone out to capture some bandits, The Scheller Gang, who have been ambushing and murdering traders and citizens traveling to and from their town.   The vigilante group led by the hangman seems to have gotten out of hand.  To the disgust of the hangman, women and children were killed.

The first book in the series, The Hangman's Daughter, is our book club pick this month.