Nun Shall Sleep (Master Mercurius Mysteries)

By Graham Brack

Another complex case falls in the lap of Master Mercurius Perfect for fans of Andrew Taylor, C J Sansom, S J Parris and Ken Follett.

Mercurius can't believe his luck ... but are things too good to be true?

1689

Master Mercurius is making plans for a holiday tour of cathedrals when a letter arrives from Abbess Mathilde asking for his help.

Her convent has been left a substantial legacy which the abbess plans to use to fill the library, and she would like Mercurius to be in charge of buying the books.

Mercurius has never accepted a mission so quickly.

But as the summer wears on, strange things start to happen in the convent. A precious relic goes missing and an important key is lost.

Mercurius is fairly certain somebody is up to something, but he doesn't know who and he doesn't know what.

Desperate to hold on to the dream position he has been given, he finds himself drawn into the mystery.

But is there something more sinister going on...?

Nun Shall Sleep is the ninth historical private investigation in the Master Mercurius Mystery series: atmospheric crime thrillers set in seventeenth-century Europe.

THE MASTER MERCURIUS MYSTERY SERIES:
BOOK ONE: Death in Delft
BOOK TWO: Untrue Till Death
BOOK THREE: Dishonour and Obey
BOOK FOUR: The Noose's Shadow
BOOK FIVE: The Vanishing Children
BOOK SIX: The Lying Dutchman
BOOK SEVEN: Murder In Maastricht
BOOK EIGHT: The Moers Murders
BOOK NINE: Nun Shall Sleep

• Format: Paperback
• Language: English
• ISBN: 0854958053
• ISBN13: 9780854958054
• Release Date: January 2026
• Publisher: Sapere Books
• Length: 212 Pages
• Weight: 0.50 lbs.
• Dimensions: 8.0" x 0.5" x 5.3"