A blistering debut thriller that introduces the coolest heroine in contemporary suspense fiction.

'Fast, hard and very, very good' Lee Child

'A truly unusual thriller set in the world of espionage, this is a terrific debut... Original and thought-provoking' Sunday Mirror

They don't call her Karla anymore. She's Charlotte Alton: she doesn't trade in secrets, she doesn't erase dark pasts, and she doesn't break hit-men into prison.

Except that is exactly what she's been asked to do.

The job is impossible: get the assassin into an experimental new prison so that he can take out a target who isn't officially there.

It's a suicide mission, and quite probably a set-up.

So why can't she say no?