1942. When Frederick Rowlands arrives in the city in answer to an urgent summons, he finds that the effects of war have not bypassed Oxford, which feels more like a military camp than a university town. His old friend and fellow war veteran, Major Ian Fraser, has been told that there is a spy at large in the university and at nearby Blenheim Palace, the heart of British Intelligence. Rowlands swiftly becomes embroiled in matters involving MI5 and enemy agents, but not before a vicious killer strikes. Now the race is on to find the murderer before he - or she - can kill again, and to prevent vital plans for a covert British mission being compromised. For Rowlands, the stakes could not be higher, as a deadly game of cat and mouse plays out .

Christina Koning has worked as a journalist, reviewing fiction for The Times, and has taught Creative Writing at the University of Oxford and Birkbeck, University of London. From 2013 to 2015, she was Royal Literary Fund Fellow at Newnham College, Cambridge. She won the Encore Prize in 1999 and was long-listed for the Orange Prize in the same year.