The Tsarina's Mask

From Author Wars - https://authorwars.com/books/the-tsarinas-mask-2862529.html

Overview:

Title: The Tsarina's Mask
Author: Karen L. Abrahamson
Year: 2019
Type: Novels
Series: Detective Kazakov Mysteries
Number in Series: 3

Variant Titles:

2019. The Tsarina's Mask