First published by Robert Hale in 2012 as "An Invisible Murder".
Summary:
Meet Jenny Starling: travelling cook and reluctant amateur detective. Jenny Starling has her dream job cooking for Lord and Lady Avonsleigh in a genuine castle. The one of the castle's treasures, a fabulously jewelled dagger, is used to murder a staff member. The victim is found stabbed through the heart in the conservatory. Lady Avonsleigh insists that Jenny help the police find the murderer. But how can Jenny solve this case when the murder was committed in front of several reliable witnesses, none of whom saw a thing? This is the fourth of a series of enjoyable murder mysteries with a great cast of characters and baffling crimes which will keep you in suspense to the final page.
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