When The Bell Tolls. The Useful Spy, #8

Miller, recovered and dangerous, is deployed against a target inside the British establishment itself. The conspiracy that has threaded through every operation - Soane, Webb, Zolotov, the Bursar, the Director - resolves to a single name. A name Miller recognises. A name Sir Harold has been protecting. The Bell Tolls and people die. Garrett is absent serving with the SAS in a South American operation.
Michelle is still unwell after her coma with memory problems - MI6 decide she is not longer operational. Miller is alone and determined to win.