Book 2 in the Spy For All Seasons subseries.
"Tatiana Kustova, the beautiful KGB rezidentura in Istanbul, wants to defect. British spy Nikki Sinclair and her MI6 lover Jasmine Richter arrive undercover to arrange the extraction. A supposedly simple operation: confirm the intel is genuine, secure the asset. In Nikki’s world, however, nothing is ever that straightforward. Not when the mission becomes beset by Bulgarian minders, ruthless assassins and a KGB General who tries to thwart her at every opportunity."