How dearly I love Sgt. Cribb! He's just so full of cute dichotomies. No problem at all learning how bombs are made or infiltrating a terrorist (Irish Republican) group - but one lovely young woman makes overt romantic, nay, sexual advances toward him and he goes all silly and confused. Again Lovesey provides us with a strong female character, but one slightly different than the others. She has her own dichotomies. Rossanna can be both ruthless and tender. She takes over organization of the plot when her father becomes debilitated, but draws the line at his martyrdom. Her flirting is so forward as to be shocking to Cribb (to a point where he seems to believe it accidental) but it isn't fake.
Rossanna might be concerned about her dad, but he doesn't seem to mind being martyred. He even tries to light the dynamite in the submarine he's sitting in with a match! He might understand more of what is going on than Rossanna credits.
I recall the television version fairly well - enough to anticipate Cribb's solution to the twin infernal machine problem, almost yelling at the Kindle. But it's still a cracking read with Cribb desperately trying to exonerate Thackeray, foil the terrorists, and not get into a compromising position with a lovely, willing woman. He has a lot to learn about being an adventurer, but that's what makes him so charming.