Nun Shall Sleep (Master Mercurius Mysteries) poster

Nun Shall Sleep (Master Mercurius Mysteries)

By Brack, Graham

First published 2026

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

Published
7 Jan 2026
Pages
212
Publisher
Sapere Books
Edition
Paperback
Elsewhere
Open Library
  • Mystery
  • Thriller

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