Penny Stirling is frustratingly difficult to kill. How can a decadent British agent of a failing service be so hard to get? Every agent we send after her, male or female, seems to fall for her charms. Liliana Stepanova here is just the latest in a long line of moon-struck assassins who have lost their marbles the minute Miss Stirling shakes a shapely leg in their direction. Honestly, what can you do when a highly-trained killer will happily let their target tie them up, have glorious hot sex with them just once, and leave them there in the full knowledge that they will end up hunted by their own service for their failings?